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1 


WEIGHT 

“T” Series 

AVIATION ENGINES 


Description 
Installation 
Starting & Operation 
Dismantling Engine 

Disassembly , Overhaul & Reassembly of Units 
Numerical Parts List 
Alphabetical Parts List 

Drazvings:-Assembly y Installation and Clearance 



WRIGHT AERONAUTICAL CORPORATION 

PATERSON, NEW JERSEY 
U. S. A. 


Copyright 1924 


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Model T-3 Engine 











Wright “T” Series Engines 


The Wright T-3 engine is a further development of the Wright 
T-2. It is shorter in overall length than the T-2, lower in height 
and develops a greater horsepower; many refinements have been 
introduced into the design and construction of the T-3 engine, but 
the basic design is the same in both engines, and as no dimensional 
data are given in the following description of the T-2 engine, it 
may be taken also as a description of the T-3, except where other¬ 
wise stated. Dimensional data of both engines will be found in a 
convenient, tabulated form in another part of the book. 


Description T-2 Engine 

12 cyl., 60° Vee, water cooled 

Cylinders Steel cylinder sleeves of the open end type are screwed 
Cylinder anc * s ^ run ^ i nto aluminum cylinder blocks. These 
Sleeves sleeves provide bearings for the pistons and through 
flanges near their lower ends, the means whereby the 
cylinder blocks are attached to the crankcase. 

The cylinders are aluminum, cast in blocks of three with in¬ 
tegral water jackets. The blocks are enameled both inside and out 
as a protection against corrosion of the aluminum due to impurities 
in the cooling water or to atmospheric action. 


Valves Two inlet and two exhaust valves are provided for 

Valve Seats eac ^ c y^ n< ^ er * They are the tulip type of valve made 

of silcrome steel and have hollow stems which work 
in long guides pressed into the cylinder head. The valves are op¬ 
erated by overhead rocker arms, tappet adjustment being secured 
by means of screws inserted in the ends of the rocker arms. 

Because of the open end type of cylinder sleeve employed, the 
valve seats, which are made of aluminum bronze, are shrunk into 
the cylinder head. This aluminum bronze has about the same co¬ 
efficient of expansion as the aluminum and therefore there is no 
likelihood of the seats becoming loose. 

Bronze spark plug bushings are screwed, shrunk and pinned 
into the cylinder walls, thus assuring good mechanical and thermal 
contact with the cylinders. 


WRIGHT AERONAUTICAL ENGINES 

Camshaft The camshaft and all the valve operating’ mechanism 
Camshaft for each bank of cylinders are carried in a cam 
Housing housing and form a complete, easily detachable unit, 
and Covers The camshaft housing which runs the whole length 
of the cylinder bank is an aluminum casting with 
integrally cast inlet manifolds, thus contributing to the rigidity of 
the engine. 

The camshaft is hollow throughout, for lightness and lubrication. 
It has two large central bearings (slightly larger than the outside 
diameter of the cams). This makes great accuracy in machining 
and alignment possible and the idea of lightness is carried out in 
the making of these bearings, by shrinking steel shells over webs 
turned on the shaft. The camshaft runs in four plain bearings, 
three of which are integral with the camshaft housing. The other 
is made from a special copper aluminum alloy, which is lighter than 
the bronze ordinarily used for this purpose, and is secured in the 
camshaft housing by means of a set screw. 

Oil tight covers enclose the whole of the valve mechanism and 
prevent oil leaking to the exterior of the engine. 

Crankshaft The crankshaft is of unusually large diameter and is 
made hollow to allow for the passage of oil and to 
reduce its weight. It runs in seven main bearings and is provided 
just behind the propeller hub with a deep row radial thrust bearing 
which gives a positive endwise location to the shaft. The propeller 
end has seventeen splines, the space in which the eighteenth would 
come being left blank to make sure that the hub is always placed 
on the shaft in the same position. These splines are intended to 
take torque only, the axial position and centering of the hub being 
determined by two cones, one at each end of the splines. The 
plugs which seal the holes in the crankthrows are easily removable 
to facilitate cleaning. 

Connecting Rods There are two connecting rods to each crank- 
pin, an inner and an outer. Both are tubular. 
The inner rod is forked at the large end and embodies a new fea¬ 
ture in the type of bearing used. This bearing is a split sleeve 
about thick cast from a special copper-tin-lead alloy which re¬ 
quires no babbit and will not seize on the crankpins even in the 
event of total failure of the lubrication system. The bearing is 
ground on the outside, in the space between the fork of the inner 
rod, to form a bearing for the outer rod. 

Pistons The pistons are made of aluminum alloy and are 

Piston Pins simple in design. No ribbing is employed under the 
head, as the section is amply strong without and 
heavy enough to dissipate heat from the centre of the head rapidly. 

4 


WRIGHT AERONAUTICAL ENGINES 

Each piston has four compression rings near the head and one 
scraper ring in the skirt. 

The piston pins are free to turn in both the piston pin bosses 
and the small ends of the connecting rods. Bronze plugs are driven 
into the ends of the pins to remove the possibility of scratching the 
walls of the cylinders. (The T-3 engine has Duralumin plugs.) 

Crankcase The crankcase is composed of two aluminum cast¬ 
ings joined below the centre line of the crankshaft. 
The sections are rather heavy and well ribbed for rigidity. All 
the bearings are carried in the upper half of the case, the bearing 
caps being made of forged duralumin. The lower half of the case 
is a sump from which oil is pumped as rapidly as it is thrown 
off by the bearings and cylinders. This construction makes the 
bearings very accessible after removing the lower half of the crank¬ 
case. 

Vertical Shaft In the upper half of the crankcase at the 

Camshaft Drive Shaft rear end is a vertical shaft which is driven 
from a bevel gear on the crankshaft. This 
vertical shaft in turn drives the inclined shafts running to the cam¬ 
shafts, two synchronizers, the magneto drives and the fuel pump. 

The inclined shafts, or camshaft drive shafts, as they are 
called, have serrated couplings near their upper ends to facilitate 
timing of the engine. The operation of these is described under 
the heading “timing the engine.” 

Magneto Drive There are two magnetos, each twelve cyl- 

Magneto Coupling inder instruments. One is wired to all spark 

plugs located on the outside of the cylinders 
and the other to all plugs situated in the Vee between the blocks. 
The magnetos are mounted horizontally and crosswise with their 
distributor boxes towards the outside of the engine. 

The magneto couplings used differ on the T-2 and the T-3 
engines. The T-2 coupling is the solid gear drive described undei 
the E-4 engine. The T-3 coupling is composed of two halves joined 
together with a thermoid disc. Adjustment of the spark is obtained 
through a little worm and worm wheel in the half of the coupling 
attached to the armature shaft, and provision is made for locking 
the adjustment when it has been set. Great accuracy in the mag¬ 
neto timing is possible by this means and once it is set there is no 
chance of accidental alteration of the timing. 

Lubrication The lubrication system is operated by three pumps 
Oil Pumps which form a single assembly. Two of these are 
suction pumps which draw oil from the front and 
rear of the crankcase, respectively, and deliver it to the external oil 
tank. The third is a pressure pump which delivers oil through a 

5 


WRIGHT AERONAUTICAL ENGINES 


tubular strainer arranged transversely in the lower half of the 
crankcase, to an oil manifold bolted to the bearing caps, from which 
it is distributed to all crankshaft bearings. 

Oil is supplied to the centre of the camshaft housings by means 
of two copper pipes, leading from an annular passage around the 
center main bearing. The center bearings in the housings are drilled 
in such a way as to distribute the oil supply to the bore of the rocker 
arm shafts and the rocker arms and cam surfaces are lubricated by 
the oil forced through small holes in the rocker arms. The cam¬ 
shaft bearings are lubricated through drilled passages which connect 
the bearing surfaces with the rocker arm shaft bores. Oil holes are 
drilled in the rear camshaft bearing and the oil which lubricates this 
bearing is allowed to force its way into the bore of the camshaft, 
through holes drilled in the shaft. It then flows out through holes 
in the tachometer shaft and returns to the sump by gravity, oiling 
in its downward path, the camshaft drive shaft, gears and bearings. 
The surplus oil in the camshaft housing returns to the sump through 
pipes, located one at each lower , corner of each housing. 

The pistons and wrist pins are lubricated by splash from the 
crankpins. The pressure employed in the lubrication system is con¬ 
trolled by a relief valve located in one end of the oil strainer. 

Water Pump Below the oil pump and driven from the same 
shaft is a water pump with two outlets which de¬ 
liver water to the base of each of the four cylinder blocks. The 
pump is of the centrifugal type. 

Gasoline Supply Gasoline is supplied to two Stromberg NA-U6T 
Fuel Pump carburetors, located in the Vee of the engine, 

by means of a Wright-Viking fuel pump. Both 
carburetors are attached to an aluminum air horn which can be re¬ 
moved with the carburetors and their control levers as a single 
assembly. 

The Wright-Viking fuel pump consists of a- bronze body in 
which runs a steel gear with teeth cut internally; this is driven 
by the pump drive gear which meshes with a bevel gear on the 
vertical shaft. The internal gear drives another small bronze or fibre 
gear which runs on a shaft offset from the centre line of the internal 
gear. The gasoline drawn in by the pump is carried round the 
pump in the pockets formed by the spaces between the teeth of 
the internal gear and fit is delivered in a constant stream to the 
outlet nipple. Carried in a boss in the pump cover is a relief valve. 
This consists of a bronze plunger which is held on to its seat in the 
cover by a helical spring. The pressure of this spring can be ad¬ 
justed by means of the adjusting screw so that the valve will open 
and allow surplus gasoline to flow through the relief line to the 
gasoline tank, when the working pressure is exceeded. 

6 


WRIGHT AERONAUTICAL ENGINES 

Installation 

General Notes 

Aligning Engine Plywood or fibre shims approximately l y /[ n 
thick, and each the full length of the engine 
feet, should be used in lining up the engine. By fitting these shims 
accurately, a good bearing on the engine feet is secured. The en¬ 
gine bearers should be faced with hard wood. 

Oil Tank In designing the oil tank, the filler hole should be so 
placed that there will be a space at the top of the tank, 
which cannot be filled, equal to 10% of the volume of the tank; 
this is to provide for expansion. A large vent line should be pro¬ 
vided (y 2 " to %")• Oil tank connections should be as short and 
simple as possible. 

"Fuel Tank The fuel tank should be located as near the engine 
as possible and the relief line should go to the main 
tank and not to the gravity tank. If the fuel tank is lower than the 
pump it will be necessary to make provision for priming the 
fuel pump when starting up. The outlet from the fuel tank should 
be equipped with a strainer which will be easily accessible, and 
another strainer at the entrance to the carburetor should be installed. 

As a rule a U pipe connects the primer nozzles and the gasoline 
is led into this U tube at the bottom of the U. As planes are 
usually started with the tail down, especially land planes, the rear 
cylinders get the prime and the forward cylinders do not get any. 
For this reason, with each installation the primer pipe assembly with 
nozzles should be removed and laid on top of the engine with the 
plane in its position for starting. By trying the primer and flattening 
the rear nozzles carefully, it will be possible to make sufficient re¬ 
striction in the rear nozzles to cause gasoline to come out of the 
forward nozzles as well as the rear nozzles. This operation cannot 
be carelessly done but with the exercise of a little care very even 
distribution can be secured. 

Besides this, the primer pump valves are not apt to be tight 
and with the throttles more or less closed in starting, there have 
been cases of the cylinders becoming full of gasoline which is drawn 
from the primer pump. If possible the primer pump supply should 
be located below the pump. If this is not possible a shut-off valve 
should be provided between the primer and the engine so that after 
the cylinders have been primed this valve can be closed. If this is 
done each time there will be no trouble from flooding the cylinders. 

Propeller Before attaching the propeller it should be tested care¬ 
fully, with the hub in position, for both balance and track. 

7 


WRIGHT AERONAUTICAL ENGINES 

Water Connections In the case of the E-3, E-4 and T-2 engines 
in tractor installations, the water outlets 
should be at the propeller end of each cylinder block. In pusher 
installations, the water outlets should be located at the magneto end 
of each block. The T-3 water outlets are so designed as to be 
satisfactory, without change, for either type of installation. 

Air Intake The air intake pipe should open outside the cowling. 

In order to prevent foreign matter (such as bits of 
waste, etc.) from entering, the pipe should be covered with a wire 
screen (about y 2 " mesh). 

Access to Parts Magnetos should be accessible from the sides and 
for this reason doors should be provided in the 
cowling. Access to the oil relief valve and to oil screen in lower 
half of crankcase should be provided for, and the access to the oil 
screen should be large enough to permit the screen to be removed. 
The cowling should also be designed so as to give easy access to 
the spark plugs. 

In order to reduce the fire hazard the engine compartment 
should be ventilated and drained. 

Starting and Operation 

General Notes 

Before Starting See that cooling system is filled with water and 
that gasoline and oil tanks are full. In cold 
weather a suitable mixture of water and anti-freezing mixture should 
be used in the cooling system. 

Starting (1) Turn fuel control valve to the “start” position. 

(2) Adjust mixture control to full rich position and 
open throttle about *4 way on quadrant. 

(3) Turn ignition switches to “off” position. 

(4) Prime engine by means of special primer. (If no primer 
is installed, engine should be primed through pet-cocks in the intake 
manifolds.) The exact amount of prime to use will vary with the 
engine temperature and must be determined by experiment, but it 
will usually be found that about six (6) strokes of a Lunkenheimer 
primer will be sufficient. 

(5) Move spark lever to full retard position. 

(6) Crank engine for about two revolutions with ignition 
switches “off.” 

(7) Turn ignition switch to “start” position. This position 
also turns on the starting magneto located on top of the starting 
mechanism. 

(8) Crank engine until it starts. 

8 


WRIGHT AERONAUTICAL ENGINES 


If trouble in starting is experienced it may be due to over¬ 
priming. This can be remedied by turning the engine over back¬ 
wards two or three revolutions with throttle open. 

The engines should start readily in cold weather. If, after 
two or three trials, an engine does not start, something is wrong 
and a careful check should be made to locate the trouble. 

After Starting As soon as engine has started, advance spark, 
throttle to about 600 R. P. M. and watch oil pres¬ 
sure gauge; if this does not show at least 20 pounds pressure within 
two minutes (15 lbs. for T-2), stop engine and determine cause of 
trouble. Pressure should rise gradually from this point until normal 
pressure is indicated. If normal pressure is not reached within a 
reasonable time, the engine should be stopped and the cause of the 
trouble located and removed. In no case should engine be run above 
600 R. P. M. until 50 lbs. pressure is recorded (30 lbs. for T-2). 
After oil pressure reaches the above value, increase throttle opening 
gradually to warm up engine. The speed should not be over 1,000 
R. P. M., however, until the oil pressure is normal the water outlet 
temperature reaches 120° F. (50° C.), and the oil 100° F. (38° C.). 
During the warming up period the gravity tank should be filled by 
turning the fuel control lever to the proper position. 

When the outlet water has reached 120° F. (50° C.) and the 
oil 100° F. (38° C.), try both switches to make sure that all spark 
plugs arc firing (clean or replace any that are found defective). 
The engine should now be tried out at full throttle, during 
which time the tachometer, oil pressure gauge, fuel supply 
gauge or indicator, water outlet thermometer and oil outlet ther¬ 
mometer should be carefully observed to see that everything is 
functioning correctly. The engine operation should be smooth and 
without any missing or back firing. If this is the case, and all 
instruments show the proper readings, the engine is ready for flight. 

In the Air The instruments should be noted at frequent intervals 
to see that the engine is functioning properly. The 
engine should be operated to keep within the following limits: 

Oil pressure between 60 and 80 lbs. per sq. in. (40-70 lbs. per 
sq. in. for T-2). 

Water temperature between 140° F. and 190° F. (60° C. to 
90° C.). 

Oil temperature not over 180° F. (82° C.). 

Fuel pressure, 2 to 4 lbs. per sq. in. 

If the oil pressure falls below the low limit of 60 lbs. per sq. in. 
(40 lbs. for T-2), an immediate landing should be made and the 
relief valve readjusted, or the cause of the trouble located and re¬ 
moved. It is not so serious when the oil pressure exceeds the high 


9 


WRIGHT AERONAUTICAL ENGINES 


limit and it is not necessary to make an immediate landing providing; 
the pressure does not exceed 100 lbs. per sq. in. When the flight 
is over, however, excessive oil pressure should be corrected. This 
can generally be done by readjustment of the relief valve. 

The water temperature should be maintained between 140° F. 
and 190° F. by proper manipulation of the radiator shutters. 

Oil temperature above 180° F. is a bad symptom and when this 
occurs a landing should be made as soon as convenient. 

It is not necessary to adjust the spark setting during flight, and 
it should be allowed to remain in the full advance position except 
for starting. 

Mixture Control Proper manipulation of the altitude or mixture 
control is essential in order to get the most satis¬ 
factory results from the engine. The control operates on the back 
suction principle, the mixture being adjusted by opening a valve 
which transmits a suction to the float chamber of the carburetor, 
thus retarding the flow of fuel through the jets and making the 
mixture lean. 

In taking off, this control should always be set in the full rich 
position. During a long climb it should be adjusted every 4,000 or 
5,000 feet to the leanest point which can be obtained without lower¬ 
ing the R. P. M. or causing uneven running. When the cruising 
altitude is reached and the engine has been adjusted to the desired 
cruising speed, the mixture control should again be carefully ad¬ 
justed to the leanest point obtainable without sacrificing R. P. M. 
or inducing uneven running. Observance of these instructions will 
lengthen the flying period between overhauls, a great deal of fuel 
will be saved and the radius of action of the airplane will be con¬ 
siderably increased. 

There is one precaution to be observed in the use of the altitude 
control, that is to move it to the full rich position before throttling 
for a glide. If this is not done it may be found that the engine 
will not respond properly when the throttle is opened at the end of 
the glide. 

Daily Inspection It is recommended that the engine be given an 
inspection before each day of flying, the in¬ 
spection covering at least the following jtems: 

(1) Inspect all accessible bolts and nuts and tighten where 
necessary, special attention being paid to propeller hub lock nut, pro¬ 
peller hub bolts, engine hold-down bolts and cylinder hold-down 
nuts. 

(2) Inspect all pipe and hose connections for leakages or 
signs of loosening. 


10 


WRIGHT AERONAUTICAL ENGINES 

(3) Inspect all wiring, especially at the terminals, to see that 
connections are tight. It is particularly important to see that the 
ignition wires are in place and properly connected. 

(4) Inspect all control linkage by moving it to the extreme 
positions and by seeing that there is no undue looseness or sticking 
and that full travel of the levers on the engine is obtained. 

(5) Pull propeller over by hand to find whether there is any 
sign of bearing seizure, loose bearings or severe valve leakage. 

(6) See that carburetors do not flood when gasoline is 
turned on. 

Twenty-Hourly Inspection It is strongly urged that after every 

20 hours’ flying time, a very sys¬ 
tematic and complete inspection be made. This inspection should 
include all the items in the daily inspection with the following 
additions: 

(1) Clean oil, gasoline and carburetor strainers. 

(2) Drain oil completely from system and fill with fresh oil. 

(3) Inspect ignition breakers and distributors, cleaning with 
alcohol and brush and adjusting where necessary. 

(4) Inspect tappet clearances and adjust any that vary more 
than .004" from specified limits. 

(5) Inspect spark plugs; clean and adjust gaps where 
necessary. 

Dismantling Engine 

“T” Series 

1. DRAW OFF PROPELLER HUB ASSEMBLY WITH 
PROPELLER HUB CENTERING RING (SMALL). 

This should be done in the following manner: 

a. Remove the locking device. 

b. Loosen the outer nut and back it off 5 turns. 

c. Loosen the inner nut and back it off 3 turns. 

d. Hold the inner nut firm and screw up on the outer nut until 
the hub breaks away from the rear cone and moves out 
about y$"- 

e. Screw in on the inner nut 2 turns. 

f. Strike front end of hub with a. soft hammer to loosen the 
front cone. 

g. Back off inner nut and remove hub. 

Note—I t is important that the propeller hub be removed according 
to the above procedure in order to prevent injury to the 
threads on the crankshaft. 

11 


WRIGHT AERONAUTICAL ENGINES 

2 Disconnect carburetor gas and water connections, loosen inlet 
manifold nuts and LIFT OFF CARBURETOR TEE 
AND AIR HORN ASSEMBLY. Care must be taken that 
this assembly is lifted out vertically, otherwise there is a dan¬ 
ger of breaking the ears on manifold tee. 

3. REMOVE CARBURETOR DRAIN TEE. 

4. REMOVE CAM HOUSING COVERS. 

5. Take off nuts and REMOVE HAND STARTER ASSEMBLY 
and STARTING MAGNETO. 

6. Disconnect all terminals from spark plugs. 

Loosen ignition wire manifolds inside and outside and aluminum 
ignition wire manifold at rear of engine. 

Cut wire from magneto hold down bolts and take out bolts. 
Disconnect magneto advance rod assembly from bracket, re¬ 
move magneto coupling pins and LIFT OFF TWO MAG¬ 
NETO AND GEAR ASSEMBLIES, MAGNETO AD¬ 
VANCE ROD ASSEMBLY AND ALL IGNITION WIRE 
ASSEMBLIES, TOGETHER. (On T-3 the magneto 
coupling is disconnected from drive by removing two nuts.) 

7. Disconnect vertical shaft oil feed pipe assembly at crankcase, 
take off 4 nuts from vertical shaft housing and REMOVE 
VERTICAL SHAFT HOUSING ASSEMBLY COMPLETE 
WITH OIL PIPE ASSEMBLY (this includes FUEL 
PUMP AND GUN CONTROLS). 

8. Remove cylinder water outlet pipe assemblies. 

Remove nuts from camshaft drive shaft pinion housings and 
camshaft drive shaft housings. Loosen packing nuts and cam¬ 
shaft drive dog housings. Disconnect oil inlet and outlet pipes 
from camshaft housings, remove all camshaft housing hold 
down nuts. Remove carburetor water pipe assembly and LIFT 
OFF CAMSHAFT HOUSING ASSEMBLIES RIGHT 
AND LEFT HAND. 

9. REMOVE CAMSHAFT DRIVE SHAFT ASSEMBLIES 
AND CAMSHAFT DRIVE SHAFT HOUSING AS¬ 
SEMBLIES COMPLETE. 

10. Take out 8 Fillister. Head screws and REMOVE MAGNETO 
DRIVE SHAFT ASSEMBLIES. 

11. Take off 6 nuts and LIFT OFF CAMSHAFT DRIVE 
HOUSING ASSEMBLY. 

12. Remove spark plugs, cylinder water inlet pipes, crankcase 
breathers, camshaft housing oil return pipes and cylinder hold 
down nuts. TAKE OFF ONE CYLINDER BLOCK AND 
REMOVE THREE PISTONS FROM CONNECTING 
RODS. 


12 


WRIGHT AERONAUTICAL ENGINES 

(Note:—C are must be taken that in removing the cylinder block 
the Pjstons do not come in contact with the cylinder studs; rubber tub¬ 
ing should be placed over these studs or they should be covered with 
rag to remove the possibility of marring the pistons. 

It is important that the pistons be removed from the exposed con¬ 
necting rods before another block is taken off, otherwise there is a 
danger of breaking the piston rings in the exposed pistons when turn¬ 
ing the motor over.) 

REMOVE OTHER CYLINDER BLOCKS AND PISTONS 
AS ABOVE. 

13. UNSCREW SOLDERING UNION TEE FROM UPPER 
HALF OF CRANKCASE. 

14. TAKE OFF CRANKCASE COVER, FRONT. 

15. INVERT CRANKCASE ON STAND AND REMOVE 
OIL AND WATER PUMP ASSEMBLY. 

16. Remove oil strainer, oil pressure relief valve, oil manifold 
plug and TAKE OFF LOWER HALF OF CRANKCASE. 

17. Remove oil pressure pipe assembly, take off 7 bearing caps 
and LIFT OUT CRANKSHAFT AND CONNECTING 
ROD ASSEMBLY. 

18. TAKE OFF CONNECTING RODS, BEING SURE TO 
KEEP THE BOLTS AND NUTS WITH THE RODS 
FROM WHICH THEY ARE TAKEN. 

19. BLOW OUT ALL OIL LEADS IN BOTH UPPER AND 
LOWER HALVES OF CRANKCASE WITH POWER¬ 
FUL KEROSENE SQUIRT. 

Disassembly, Overhaul and Reassembly 
of Units 

Crankshaft Assembly 

Dismantling On each complete disassembly of the engine the 
crankshaft should be blown out with a powerful 
kerosene squirt, the crankshaft plugs being removed to insure per¬ 
fect cleansing. Special screw driver WA-32 should be used for re¬ 
moving these plugs. The crankshaft gear and thrust bearing should 
not be disturbed without urgent cause, but if they have to be re¬ 
moved the following is the procedure: Remove crankshaft gear by 
pulling out cotter pin and unscrewing crankshaft gear nut with spe¬ 
cial tubular wrench WA-69. (On T-3 engines tool WA -76 will be 
necessary.) With special offset wrench WA-48 unscrew crankshaft 
ball bearing nut. This will force off the large propeller hub center¬ 
ing ring and leave the oil slinger and ball thrust bearing free to be 
drawn off the shaft. 

Reassembly The preceding order of disassembly may be reversed 
for reassembly. When putting in the crankshaft 


13 


WRIGHT AERONAUTICAL ENGINES 

plugs be sure to screw them in tightly, otherwise there will.be a 
possibility of oil leakage. To prevent their loosening it is advisable 
to lock them by center punching at two or three points near the 
outside diameter. 


Cylinder Block Assembly 

Dismantling Remove valves. When performing this operation 
a block of wood should be inserted in the cylinder 
bore in order to support the valves when they are released. Using 
tool WA-45, compress the valve springs and pick out the valve 
spring washer locks. (These are small steel cones each made in 
two halves.) Take off valve springs and washers. Inspect valves 
and valve seats for signs of wear or pitting and lap-in any that need 
it. All valves are numbered and care must be taken that they are 
lapped into the corresponding seats. 

Examine cylinder bores for signs 'of scoring or scratching. 
Stone out or lap any cylinders which require it. 

Reassembly This is a reversal of the order of dismantling. 

Note —Make sure before reassembling that all cylinder bores, valves and 
valve seats are absolutely free from lapping compound or dirt of any kind. 


Camshaft Housings 

Dismantling Take off camshaft housing cover rear; remove set¬ 
screw which secures camshaft bearing and draw 
out camshaft complete with camshaft bearing gear and nut and 
tachometer drive shaft. Take out two steel plugs and withdraw 
two rocker arm shafts, using tool WA-128 (the rocker arms will 
drop off as the shafts are withdrawn). Remove camshaft housing 
cover, front, and withdraw two remaining rocker arm shafts. Re¬ 
move tachometer shaft by taking out cotter pin. Take off cam¬ 
shaft nut and draw off camshaft gear and bearing. For replacement 
of rollers on rocker arms tool WA-60 will be found useful. 

Reassembly Insert four rocker arm shafts, slipping on the 
rocker arms as the shaft enters. Screw in two 
plugs and replace front and rear covers. 

Assemble camshaft bearing, camshaft gear and tachometer drive 
shaft on camshaft. Insert this camshaft assembly from the rear of 
the camshaft housing and secure by means of set screw in bearing. 

Important: If for any reason the camshaft gear has to be renewed, 
particular attention must be paid to the amount of backlash between this gear 
and the camshaft drive shaft pinion—this backlash should be .006" to .012" 
and it may be found necessary to grind the flange of the camshaft gear to 
obtain this amount. 


14 


WRIGHT AERONAUTICAL ENGINES 

Vertical Shaft Housing, Oil Pipe, Gun Controls and Fuel 
Pump Assembly 

Remove oil pipe assembly from top of vertical shaft housing 
cover. Inspect the oil metering jet and clean thoroughly if neces¬ 
sary. Take off 4 nuts and washers and remove fuel pump from 
vertical shaft housing. 

Fuel Pump Assembly 

Dismantling Take out 2 fill. hd. screws and remove cast iron 
cover; draw out brass or fibre pinion and internal 
gear and from opposite end of body take out bevel gear and bearing. 
Take off fuel pressure relief cover and inspect relief valve seat, lap¬ 
ping it, if necessary. Unless it is absolutely essential, the packing 
in the stuffing box should not be disturbed. 

Reassembly Assembly of the pump should start with the re¬ 
placing of the steel internal gear and in doing this 
great care must be taken that the packing in the stuffing box is not 
injured. If, for urgent reason, the packing has had to be removed, 
replacement of it should include a very careful caulking with the 
internal gear in position, making sure that the gear is a free running 
fit after the packing is fitted. 

Important: It is essential that all bearing surfaces be lubricated thor¬ 
oughly with castor oil before putting them together, and this applies par¬ 
ticularly to the pinion shaft which extends into the cast iron cover. 

Vertical Shaft Housing 

Dismantling Remove vertical shaft housing cap by taking out 
4 fill. hd. screws. Take off 8 nuts and washers and 
remove 2 gun control gear bearing caps. This leaves the gun control 
drives free to be taken out. Tap on bottom of vertical shaft gear 
upper, and thus remove gears, ball bearing cage and ball bearing. If 
it is necessary to renew the bushings on the gun control shafts, re¬ 
move cotter pins and nuts and draw off gears and bushings. 

Reassembly Assembly order is a reversal of the order of dis¬ 
assembly. 

Oil and Water Pump Assembly 

Remove 3 nuts and washers. Loosen lock screw in water 
pump packing gland and detach oil pump assembly from water 
pump assembly. 

Oil Pump Assembly 

Dismantling Take out 3 cotter pins from oil pump gears and 
remove 3 castled nuts (a piece of copper sheet in- 


15 


WRIGHT AERONAUTICAL ENGINES 


serted in the slot in pump drive gear, lower, and bent so as to fit 
between the teeth of the gear will be found to provide a suitable lock 
for the gears when removing the nuts). Draw out pump drive gear, 
lower, and with tool WA-10 draw three oil pump drive gears from 
tapered ends of oil suction pump gears; remove 3 woodruff keys. 

Take off 8 l /[" nuts and washers and remove oil pump cover 
plate from body by tapping ends of protruding studs with a brass 
or lead drift. Take out 3 pump idler gears and 3 pump suction 
gears. Inspect all gears and suction chambers for signs of rough¬ 
ness. 

Reassembly Start reassembly by replacing 3 pump idler gears, 
and 3 oil suction pump gears in body. Fit cover 
plate, using a little shellac on edge of body face between pressure and 
suction pump sections. Secure with 8 nuts and washers, Replace 
pump drive gear, lower, making sure that cork is in position in shank 
and put oil pump drive gears back on oil suction pump gears, using 
the copper strip for a lock as explained under dismantling. Secure 
gears with nuts and cotter pins. 

Note: If the pump drive gear lower bushing has been renewed, ream 
it from open end of body before reassembly is started. This will insure a 
straight hole accurately located with regard to the three oil suction pump gears. 

Water Pump Assembly 

Dismantling Remove water pump packing gland, take off 6 
nuts and remove water pump cover. Draw out 
shaft and impeller assembly and inspect thrust button in bottom of 
shaft. 

Reassembly Reassembly is a reversal of order of dismantling. 

Reassembly of Oil Pump with W'ater Pump 

Attach water pump to oil pump by means of 3 nuts and lock 
water pump packing gland by means of locking screw. 

Camshaft Drive Housing Assembly 

Dismantling Cut and remove wire which locks fill. hd. screws, 
take out 6 fill. hd. screws and drive out vertical 
shaft gear, lower (complete with ball bearings and gears) from upper 
end of camshaft drive housing. Take out cotter pin, remove slotted 
nut and draw off vertical shaft drive gear and ball bearing. Take 
off magneto drive gear. Remove lock ring and take off nut at top 
of vertical shaft gear, lower. Take off ball bearing. 

Reassembly Reassembly is reversal of order of dismantling. 

Camshaft Drive Shaft and Housing Assembly 

Dismantling Pull off camshaft drive shaft housing and packing 
nut. Remove locking ring and unscrew camshaft 


16 


WRIGHT AERONAUTICAL ENGINES 

drive dog housing. Take out cotter pin, remove nut and washer 
and draw out camshaft drive shaft with camshaft drive dog, lower. 
Take off camshaft drive dog, upper, and draw camshaft drive shaft 
pinion from housing. 

Reassembly Reassembly is reversal of order of dismantling. 

Hand Starter Assembly and Starting Magneto 

Dismantling Release starting magneto strap and remove start¬ 
ing magneto. Drive out 2 pins from starter worm 
collar and remove collar. Draw out starter worm complete with 
starting magneto gear and ball bearing. Take out 2 screws and 
remove starter ball bearing retainer. Lift out starter worm wheel 
and ball bearings. 

Reassembly Reassembly is reversal of order of dismantling. 

Carburetor Tee and Air Horn Assembly 

Dismantling Disconnect carburetor control rods which connect 
throttle levers of both carburetors. Remove fill 
head screws and lift off carburetors. Take off nuts and remove 
carburetor tees. 

Note: Precise setting of the throttle valves on both carburetors is essen¬ 
tial to the smooth operation of the engine; therefore, in removing the control 
rods great care should be taken that the adjustment on the rods is not 
disturbed. 

Reassembly This is a reversal of the order of dismantling. The 
operation of the throttle valves should be checked 
carefully to make sure that the control rod adjustment has not been 
altered, but that both valves open and close in unison. 

Reassembly T-2 and T-3 Engines 

This is a reversal of the order of dismantling, but several 
points must be watched carefully: 

1. Make sure that the passages in all oil leads and pipe lines are 
clear and clean, before they are assembled to engine. 

2. Oil all parts before assembling. 

3. See that the oil pump drive gear is in place before the lower 
half of the crankcase is assembled to the upper half and in as¬ 
sembling the two halves together use a little shellac on the joint. 

4. Shellac also the crankcase front cover plate in assembling. 

5. In assembling the pistons, it is advisable that they be done in 
lots of three, otherwise a lot of trouble due to the breaking of 
piston rings will result. On the T-2 engine the order of fitting 
the cylinder blocks is of importance. Start with the left rear 
block (magneto end), then fit the left front block, next the right 

17 


WRIGHT AERONAUTICAL ENGINES 

rear, finishing with the right front block. In assembling the 
blocks, a special piston ring clamp WA-44 should be used. Get 
pistons 1 and 3 on the left bank at the top of the stroke. Attach 
clamp over compression rings and lower the block carefully. 
This will push down the clamp which must be fitted over the 
scraper rings of pistons 1 and 3 and the compression rings of 
piston 2. In order to get the cylinder block over the scraper 
ring of piston 2 (that is, the centre piston of the 3) a spring 
steel clamp or piece of wire may be used. This will be pushed 
down into the crankcase by the descending block and may be re¬ 
moved from the opposite side. Assemble the other blocks in 
the order mentioned, tightening each one down as it is put in 
place. When it comes to the last block (right front propeller 
end) the spring steel clamp or wire on the last scraper ring will 
have to be removed through the breather hole. 

6. The camshaft drive shaft assembly must be fitted in place be¬ 
fore the cam housings are assembled to the engine. 

7. After the cam housings are fitted, the valve tappet clearances 
should be adjusted and the engine timed. Complete instructions 
for timing are given on pages 18-19. 

8. It is important that the valve mechanism be flooded liberally 
with oil before the cam housing covers are put in place and the 
plug on top of the cam housing (magneto end) should be re¬ 
moved and the space completely filled with lubricating oil. 

9. Make sure on the T-2 engine that the cotter pins are fitted in 
the magneto couplings after timing the magnetos. On the T-3 
engine care must be taken that the magneto couplings are as¬ 
sembled in such a way that the adjusting screw is facing out¬ 
wards. 

10. Before assembling the propeller hub to the crankshaft, oil the 
splines and the cones, otherwise subsequent difficulty in removing 
the hub may be experienced. 

Timing Engine 

Check all valve tappet clearances. 

1. Insert dead center indicator WA-43 in number 1 cylinder (mag¬ 
neto end) of left block (left from magneto end). 

(Note: In the 8-cylinder engines the cylinders are numbered from the 
propeller end. For E-3 and E-4 engines, therefore, read “pro¬ 
peller end” instead of “magneto end.” Also note that dead 
center indicator WA-4 should be used with E-3 and E-4 
engines.) 

2. Mount timing disc WA-114 (WA-13 is used on E-3 and E-4) 
on crankshaft, loosen cap screws so that disc is free on hub and 
put pointer in place. 


18 


WRIGHT AERONAUTICAL ENGINES 

3. Turn crankshaft till piston of number 1 cylinder is at top dead 
center. 

4. Loosen nut on top of camshaft drive shaft; unscrew and slip 
down camshaft drive dog housing and tap the loosened nut. 
This will separate the serrated coupling and free the camshaft 
from its drive. 

5. Turn camshaft till the cam of number 1 left intake is just in 
contact with the roller on the rocker arm. 

6. Turn crankshaft till the pointer registers with the mark on 
timing disc for the opening of number 1 left intake valve and 
then tighten up nut on top of camshaft drive shaft, thus draw¬ 
ing serrated coupling together. 

Note;: —Before putting in cotter pin, check over this setting to make 
sure that camshaft did not move whilst tightening nut. 

7. Repeat the above operations for number 6 cylinder right hand. 

Note: —On E-3 and E-4 engines the procedure will be repeated on num¬ 
ber 4 right hand cylinder. 

Magneto Timing 

1. Insert dead center indicator in number 1 cylinder (magneto 
end) of left block (left from magneto end). 

Note: —In the 8-cylinder engines, the cylinders are numbered from the 
propeller end. For E-3 and E-4 engines, therefore, read “pro¬ 
peller end” instead of “magneto end.” 

2. Mount timing disc on crankshaft, loosen cap screws so that disc 
is free on hub and fix pointer in place. 

3. Turn crankshaft till piston of number 1 cylinder is at correct 
number of degrees before top dead center as shown on timing 
disc. 

4. Fully advance magneto, and disconnect magneto coupling. 

5. Adjust breaker cam so that points are just breaking with brush 
on number 1 segment of distributor. 

6. Re-mesh coupling. 

Note :—On T-3 engines where the thermoid disc type of coupling is used, 
magneto adjustment is obtained by releasing the locking screw 
on the magneto coupling adjusting hub and turning the magneto 
coupling adjusting screw. Turning to the right advances the 
spark and to the left retards it. 

Do not forget to tighten the locking screw after the magnetos 
are timed. 


19 


WRIGHT AERONAUTICAL ENGINES 


Carburetor Overhaul 

Instructions for taking apart Stromberg carburetors used on Wright 
Engines and for Inspection and Reassembly 

The usual objective in overhauling the carburetor is to make 
sure that all parts are clean (particularly the fuel passages), that the 
needle valve and seat are in good condition and that no internal parts 
are loose. Therefore, it is seldom necessary, nor is it advisable, to 
disassemble the instrument completely. This applies particularly to 
the throttle valves. These should never be removed, for it is on 
the precise setting of these valves, relative to the idling slots, that 
the operation of the carburetor in idling and acceleration is de¬ 
pendent. 



E 

CONNECTION 
FLOAT LEVER 
FULCRUM SCREW 


FLOAT NEEDLE VALVE 


THROTTLE VALVE 
BODY 


LARGE VENTURI 
TUBE 


SMALL VENTURI 
TUBE 


MAIN 

nozzle 


THROTTLE VALVE 

THROTTLE VALVE SHAFT 

IDLE DISCHARGE JET 


VALVE SEAT 


MAIN BODY 


ACCELERATING 
WELL 
ACCE 

WELL NOZZLE AIR HORN CONNECTION 


GASOLINE CHANNEL 
PLUGS 


TERING 
NOZ ZLE 


NA-D4 Carburetor used on E-3 Engim 


IDLE ADJUSTMENT NEEDLE 

IDLE TUBE 
AIR INTAKE TO JET 
FLOAT 


Dismantling 

1. REMOVE NEEDLE VALVE PLUG AND STRAINER. 

2. TAKE OUT BOLTS AND SET SCREWS AND SEP¬ 
ARATE THE TWO HALVES OF THE BODY. 

These two halves of the body must be separated very care¬ 
fully to avoid the bending of the idling tubes which ex¬ 
tend through both halves. If the halves do not part readily, 

20 














WRIGHT AERONAUTICAL ENGINES 

loosen the set screws which lock the Venturi in place and 
tap the air entrance lightly with some soft substance. Try 
not to damage the gasket, as the operation of the mixture 
control depends on this being perfectly tight on re-assembly. 

3. REMOVE NEEDLE VALVE SEAT. 

In carburetors with serial numbers larger than 753156, 
the valve seat is taken out from the top after the removal 
of the needle valve plug. In carburetors with smaller serial 
numbers, the valve seat is screwed in from the underside of 
the body; in these cases it is necessary to remove the gas 
chamber plug, take out float fulcrum pin, remove the float 
and then unscrew the seat with a special screw driver. 
Examine the seat and needle valve plug for wear. Wear is 
usually confied to the seat, which can be made good by grind¬ 
ing if only slightly worn or by replacement if badly pitted. 
Whether the seat is removed from above or from below, 
be sure to preserve the gasket under it, as the thickness of 
this determines the level of the fuel in the float chamber. 
There is usually no need to remove the float excepting in 
the case of the older carburetors, where it is necesary in 
order to get at the valve seat. 

4. REMOVE THE GASOLINE CHANNEL PLUGS AND 
THE ACCELERATING WELL PLUG. TAKE OUT 
THE BODY METERING NOZZLE AND THE IDLING 
TUBES. 

It is not usually necessary to remove the main discharge 
nozzles, since the gas passages can be washed out thor¬ 
oughly without doing this. 

5. REMOVE IDLE ADJUSTING SCREWS FROM 
UPPER HALF OF BODY. 

Before unscrewing these, screw them in as far as they will 
go, making a note of the number of turns required to screw 
them home. This information will be required in the re¬ 
assembly. 

Mixture Control 

Do not take apart the pilot’s control valve, but merely wash 
it and blow it out with compressed air. There is a small 
hole leading from a passage near the side of the Venturi 
into the float chamber. This should be examined and 
cleaned, if necessary; also the small screen at the entrance 
to this passage should be cleaned. 

21 


WRIGHT AERONAUTICAL ENGINES 

Model NA. U6T Carburetor 



Reassembly 

The order of reassembling is a reversal of the order of dis¬ 
assembly, but the following points should be very carefully watched: 

1. Be sure the valve seat is screwed right home. 

2. If the float has been removed, be sure that a 1/32" hard 
washer is put beneath the head of the float lever fulcrum 
screw when it is replaced. If this is left out, the screw 
will sink in far enough to bind the float lever. Make sure 
that the float operates freely after it is replaced. 

3. Checking fuel level. 

Whenever the valve seat or the float has been removed, the 
fuel level should be checked, in fact, it is advisable to check 
this in all overhauls. To do this, take the lower half of the 
carburetor and set it up with the top surface level and with 
all plugs, etc., in place. Then connect the fuel nozzle to a 
gasoline supply and apply the same pressure as that it will 
be subjected to in actual operation in the plane. 

Using an ordinary scale measure, the distance from the top 
of the float chamber to the gas level should be 1A 
tolerance of 1/16" either way may be allowed. 

If the level is too high, that is, if the scale reads less than 
1 Y% > the needle valve seat must be lowered so that the 
valve will strike it sooner. This means changing the gasket 
under the seat so as to lower it. The amount the seat 


22 







































WRIGHT AERONAUTICAL ENGINES 

should be moved is }4 the error in level. Thus, if the level 
is 1*4" below the top instead of the desired V/ 8 ", the valve 
seat needs to be lowered 1/32". If the seat is too low this 
means the valve cuts off too soon and the seat requires to 
be raised. 

4. In replacing the nozzles and plugs, be sure they are all 
tight. It is recommended that for carburetor work the 
screw drivers used should be of the proper sizes and be 
kept in good condition, for burrs on the nozzles can easily 
interfere with the flow of the fuel. 

5. In reassembling the two halves of the carburetor, be sure 
that the large Venturi are properly seated in the lower half 
and that their lock screws enter the gaps in the locking rings. 
See that the surfaces of the two halves are undamaged and 
that the gasket is in good condition. Draw the halves to¬ 
gether with the bolts and cap screws by tightening them 
gradually and in turn. The existence of a perfect joint 
between the halves is essential to the efficient operation of 
the carburetor. 

6. Under Item 5 of the Dismantling it was mentioned that 
before removing the idle adjusting screws they should be 
screwed home and the number of turns required, noted. 
On reassembling, run the screws right home and then un¬ 
screw until the original adjustment is obtained. 

7. Where two carburetors are used as in the case of the 
NAU-6T carburetor, the synchronization of the throttle 
valves of the two carburetors is more important than even 
the mixture adjustment, in getting good low speed opera¬ 
tion. If the throttle valves of one carburetor can open 
further than those of the other, the engine speed will be too 
high for the smaller throttle openings and the cylinders re¬ 
ceiving the smaller charge will miss or fire in the exhaust 
ports. Accurate throttle synchronization can be obtained 
after the carburetors have been bolted to the air horn, by 
adjusting the rod connecting the throttle levers of the two 
carburetors. 

Magneto Overhaul 

Magnetos should never be handled by anybody but a magneto 
specialist, except for cleaning the distributors and adjusting the 
platinum breaker points. Nevertheless, a magneto should be taken 
apart for examination and cleaning by a properly qualified man after 
100 hours’ service. 


23 


WRIGHT AERONAUTICAL ENGINES 

For Normal Magneto Remove the two cotter keys which hold 
Examination the distributor block clasps in position. 

Press forward the two clasps on either 
side of the block and spring them out, releasing the distributor block. 
Do not remove the wires from the distributor block. Remove bind¬ 
ing post screw and breaker point cover. This is as much dis¬ 
assembly as will be necessary for a normal examination of the 
magneto, and, generally speaking, magnetos should not be further 
disassembled. 

Magneto Disassembly Loosen the four screws from the sides of 
the magneto near base and remove the 
two bars and the magneto cover plate. 

To remove the magnets place a soft iron keeper against the 
magnet at the base. Remove two nuts and cotter from the end of steel 
strap at driven end of magneto and raise strap up. Slip magnet 
up vertically, then tilt out at bottom and slide down and out from 
behind magneto frame bolt. Repeat for other magnet. Magnets 
should never be removed without the use of a keeper and should 
either be stored separately with a keeper in place or placed end to 
end with semi-circular cuts on opposite sides. 

Remove screw and disconnect primary winding cable where at¬ 
tached to breaker point arm and loosen small clip on rotor housing 
which holds the cable in position. Remove screw and loosen woven 
copper primary ground connection. Loosen four screws and slip the 
two clasps off the end of the coil core piece. Lift off coil, drawing 
flexible cable out of hole through magneto frame. 

This will be sufficient to give the magneto a careful examination 
and test the strength of the magnets, to clear out any dirt which may 
have accumulated around the rotor and to dust the condenser. 

Complete disassembly is accomplished by removing the double 
nuts and lock washers at the top of the magneto frame and the two 
other bolts at the bottom. Remove nut and drive gear from taper 
end of rotor shaft and pry the aluminum castings off the two dowel 
pins which hold them at their base. Use great care in this operation, 
as the dowels are very tight, being put in place on an arbor press. 
Next remove the four screws which hold in place the rotor housing 
end plate and bearing support. After removing the special screw 
and the rotor cam, drive the rotor shaft back out of the housing 
(toward driven end). This is as far as the magnetos should ever be 
disassembled except when some part of the adjustable breaker frame 
may be actually broken. This frame is adjustable, being held by 
three screws which have special grooved heads provided with a per¬ 
manent locking device. The timing of the magneto is correctly done 

24 


WRIGHT AERONAUTICAL ENGINES 


at the factory before shipment and should never be tampered with 
except for the actual replacement of broken parts. In case it is 
loosened it will be necessary to retime the magneto. 

Inspection Inspect the rotor member for signs of binding, either 
on the outer face of the soft iron members or on the 
ends of these members. 

Inspect the flexible copper ground connection to see that it is 
clean and tight. 

See that the inner-distributor rotor carbon brush is in good con¬ 
dition and makes good contact with the high tension winding. Ex¬ 
amine the platinum points to see that they are free from serious 
pits, have a smooth contact surface and are adjusted to the correct 
clearance when wide open. (See specification list on pages 91-96.) 

Reassembly Reassemble rotor shaft and ball bearings in rotor 
housing, using extreme care that all parts are en¬ 
tirely clean and that the ball bearings are packed in with a small 
amount of vaseline. Great care must be exercised that the two 
spacing washers on the rotating shaft are of such thickness that the 
shaft has 0.002 to 0.004 play, both between the collars on the shaft 
and between each collar and the opposite front or back plate. Also 
that the rotated member is in the center of the field structure so that 
a 0.003 feeler gauge can be passed completely around it in any posi¬ 
tion. If this rotor should bind at any point, heat will be produced 
and it may eventually break the shaft. 

Replace the drive coupling part and the cam with its lock screw. 
Also replace the magneto drive coupling part together with its nut 
and cotter pin at the driven end of the shaft. 

Reassemble the coil, being sure that the winding clamp screws 
are tight and that their lock nuts are tight. Also that the wire 
connections are clean and tight. 

Replace the magnets, being careful that the magneto support 
pieces are in place. Screw the magneto strap down tight and lock 
it by tightening the double nuts against lock washers. Replace 
magneto cover. Replace breaker cover and terminal screw. Clean 
the inside of the distributor box of all free carbon and replace. 


25 



Part I 

B-28 

B-32 

B-63 

B-64 

656 

657 

904 

1437 

1458 

6204-1 

6205-7 

6207-7 

6208-7 

6306-i 

6315-7 

6316-1 

10487 

10561 

11161 

11163 

11168 

11169 

11204 

11206 

11207 

11233 

11235 

11245 

11340 

11348 

11440 

11443 

11445 

11449 

11457 

11503 

11508 

11530 

11531 

11540 

11559 

11680 

11705 

11707 

11796 

11819 

11820 

11896 

11897 

11898 

11900 

11901 

11945 

11893 

11985 

12053 


WRIGHT AERONAUTICAL ENGINES 


Numerical Parts List 


T-2 and T-3 Engines 


Part Name 

Gasket, M" I. D. x 41" O. D. x *. 

Gasket, 242" I. D. x 2§2" O. D. x &". 

Cotterpin, 52 x 154.. 

Cotterpin, 3k x 1. 

Cotterpin, 52 x y . 

Cotterpin, 52 ... 

Ball Bearing. 

Dowel, ik x y . 

Washer, 4i plain. 

Ball Bearing . 

Ball Bearing. 

Ball Bearing ... 

Ball Bearing . 

Ball Bearing #6306 . 

Ball Bearing. 

Ball Bearing #316 . 

Lock Ring, Vert. Shaft Casing Nut. 

Coupling, Tachometer . 

Rivet, .066"-.072" Dia. x Rd. Head Iron 

Dowel, Conn. Rod Bushing. 

Packing y 8 " .... 

Cotterpin, x 54...;. 

Hose, y 8 ' I. D. x 3" Long... 

Pin, Tachometer Coupling.. 

Cotterpin, Dia. x 54".. 

Plug, 24" Pipe. 

Clamp, Hose 154" I. D. 

Clamp, y 8 Hose. 

Terminal, Ignition Wire (Rajah). 

Cotterpin, l / 8 x 154. 

Gasket, iy x iy x <& . 

Pin, Straight ^5 x 24.-. 

Cotterpin, t*s x 1. 

Ring, Ignition Wire, large. 

Ring, Ignition Wire, small. 

Nut, Slotted 24 x 24 x 54. 

Nut, Slotted 54 x 20 x 54. 

Spring, Oil press, relief. 

Plunger, Oil press, relief. 

Pin, straight -fa x 44. 

Gasket, 24 L D. 

Key, #3 Woodruff .-.. 

Washer, §4" x 24 x 4W.-. 

Cotterpin, A x 24. 

Cock, Spring key 24".-. 

Plug, 24-18 . 

Screw, Fill. Head #14-24 x &. 

Spring, Mag. Coupling ._. 

Coupling, Magneto .... 

Washer, Mag. Coupling spring... 

Nut, 24-16 x 24... 

Rivet, Rd. Hd. 54 x 24. 

Cotterpin, 3k x 254. 

Rivet, Flat Hd. & x 24..7. 

Spark Plug, Champion AC large porcelain.... 
Screw, Rd. Hd. #4—32 x 24. 


Quantity per engine 
T-2 T-3 


24 

1 

2 

2 

12 

24 

1 

20 

6 

5 

1 

1 

2 

1 

2 


12 

13' 

78 


8 

24 

2 

3 

16 

3 

4 
2 

24 

14 

1 

1 

7 
1 

5 
3 

24 

3 

5 

6 
2 
2 
2 
2 

24 

2 

32 

24 

8 


24 

1 

2 

13 
22 

2 

20 

4 

5 
1 
1 
2 
1 

1 

2 

1 

8 

12 

9' 

54 

4 

1 

2 

1 

8 

12 

24 

2 

1 

16 

3 

4 

24 

14 
1 

6 
2 

5 
3 

24 

3 

6 
14 


2 

40 

8 


27 


























































Part 2 

14143 

14218 

14221 

14282 

14408 

14437 

14574 

14575 

14605 

14608 

14631 

14632 

14633 

14641 

14642 

14644 

14648 

14649 

14692 

14700 

14701 

14702 

14711 

14712 

14734 

14771 

14772 

14774 

14775 

14792 

14800 

14810 

14826 

14832 

14833 

14835 

14837 

14873 

14889 

14921 

14922 

14931 

14940 

14941 

14950 

14952 

14953 

14954 

14955 

14956 

14957 

14958 

14959 

14960 

14961 

14964 

14965 

14975 

14977 

14979 


V/RIGHT AERONAUTICAL ENGINES 


Quantity per engine 
Part Name T-2 T-3 

Washer, Valve Spring, lower. 48 48 

Rivet, Rd. Hd. Yz x V 2 .-.-. 2 

Rivet, Rd. Hd. Yz x Ya ... 6 6 

Cotterpin, Yz x 1.-. 19 19 

Plug, Yz Pipe... 15 13 

Nut, Castled ^-24 x ft!. 32 32 

Nut, Plain £e x 24.138 125 

Nut, Plain Yz x 24. 85 39 

Gear, Oil pump drive... 3 3 

Gear, Oil pump Yz face. 1 1 

Plug, Oil and Water pump dr. shaft. 1 1 

Gasket, Oil Pump Cover plate. 1 1 

Gear, Pump Idler Yz face. 1 1 

Plate, Oil filter end. 1 1 

Spring, Oil filter. 1 1 

Tube, Oil suction filter. 1 

Hose, 1" I. D. x 3". 2 

Clamp, 1" I. D. Hose. 4 12 

Packing, t 9 s I. D. x Yz O. D. 2 2 

Screw, Fuel press, relief adj. 1 1 

Nut, Lock, Fuel press, relief adj. 1 1 

Cover, Fuel press, relief... 1 1 

Gasket, Yz x 1% x ik. 12 12 

Nut, Castled £ 5 -24 ... 7 7 

Plug, Crankshaft (large). 13 6 

Spring, Valve outer . 48 48 

Spring, Valve inner . 48 48 

Washer, Valve spring upper. 48 

Lock, Valve spring washer. 96 96 

Plug, lYz x 12. 2 

Adapter, Tachometer Shaft... 1 

Body, Oil press, relief. 1 1 

Connection, Ya I- D. Hose... 2 2 

Nut, Slotted £5 x 18 x £s . 2 

Screw, Fill. Hd. Ya x 20 x £s . 2 2 

Gasket, Ya x 1. 2 6 

Screw, Fill. Hd. Ya x 20 x £s . 10 

Dowel, & x Yz .-. 2 2 

Screw, Hdless. Set 1 % x 24 x Y 2 . 6 6 

Nut, Yz x 24 x £z. 48 48 

Gasket, 1 Yz I. D. x 1 Yz O. D. 2 

Nut, Plain Ya x 28. 22 30 

Lock washer, £s x Yz x iV. 3 3 

Lock washer, Ya x £2 x £1 . 14 14 

Nut, Castled £s x 20. 7 6 

Stud, ^ x 24 x 18 x 1&. 4 20 

Stud, £s x 24 x 18 x YYa . 11 12 

Stud, ^ x 24 x 18 x 1 V 2 . 24 24 

Stud, £% x 24 x 18 x 1 Ya . 5 5 

Stud, x 24 x 18 x 1 Yz . 6 6 

Stud, Yz x 16 x 24 x IV 2 . 2 4 

Stud, Yz x 16 x 24 x lfs. 4 

Stud, Ya x 20 x 28 x ltV. 4 12 

Stud, Ya x 20 x 28 x 1 . 10 6 

Stud, x 20 x 28 x Hi. 4 4 

Stud, £5 x 18 x 24 x Hi. 72 48 

Nut, £s x 24 x Yz . 72 48 

Hose, V 2 " I. D. x 2. 3 3 

Clamp, ^4" I. D. Hose. 6 6 

Dowel, ^ x Yz . 12 6 


28 






























































WRIGHT AERONAUTICAL ENGINES 


Part No. Part Name 

14981 Gasket, Crankcase Rear Cover. 

14987 Pin, & x M. 

14988 Nut, #10 x 32 x A. 

14994 Washer, II x V 2 . x A. 

14995 Washer, §i x i! x A. 

14996 Washer, If x H x &. 

14997 Washer, II x If x &. 

15019 Plate, Motor Name. 

*15189 Screen, Oil filter . 

*15190 Screen, Oil filter reinforcement . 

15200 Stud, 54 x 16 x 24 x 1 Y . 

15202 Union Brazing—elbow % x A. 

15203 Union Brazing—elbow Y x Vz . 

15204 Union Brazing—str. Y x Vz . 

15253 Bushing, Fuel Pump gear. 

15256 Gasket, Fuel Pump cover. 

15258 Nut, Packing, fuel pump..... 

15259 Spring, Fuel press, relief valve. 

15266 Tag, Mag. inside . 

15267 Tag, Mag. outside .. 

15283 Clip, Vs O. D. Pipe. 

15286 Valve, Fuel press, relief. 

15287 Guide, Fuel press, relief adj. screw. 

15330 Nut, Propeller hub bolt. 

15372 Stud, * x 18 x 24 x 1*. 

15421 Screw Cap, Vs x 16 x 1A. 

15422 Stud, A x 18 x 24 x 1A. 

15440 Plug, IV x 12... 

15472 Screw, Fill. Hd. ^ x 20 x U . 

15487 Plug, Vs x 14. 

15489 Cap, Oil press relief... 

15513 Bushing, Conn. Rod.. 

15516 Pin, Piston . 

15517 Plug, Piston pin . 

15524 Ring, Piston .. 

15537 Roller, Cam .. 

15541 Screw, Valve adj.. 

15542 Shaft, Rocker arm . 

15543 Guide, Valve intake. 

15545 Rocker, Valve .... 

15560 Bolt, Conn. Rod inner. 

15563 Bushing, Valve Rocker . 

15564 Bushing, Valve Rocker oil feed. 

15565 Nut, Castled ^ x 28 x A. 

15598 Pin, Escutcheon .080 x Vs . 

15610 Screw, Lock V x 16 x . 

15678 Pin, Brazing .. 

15681 Union, Brazing Str. Ys x Y . 

*15694 Crankshaft .-. 

15732 Plug, y A Pipe. 

15740 Nut, Camshaft . 

15741 Clamp, 1Y I. D. hose.... 

15742 Cover, Camshaft Housing rear. 

15743 Gasket, Camshaft Housing cover rear. 

15744 Shaft, Tachometer Drive. 

15750 Dowel, Crankshaft Bearing. 

*15752 Connecting Rod, inner . 

*15753 Connecting Rod, outer . 

15754 Bolt, Conn. Rod, outer. 

* Not to be ordered as spares. 


Quantity per engine 

T-2 

T-3 

. 2 

1 

. 4 

4 

. 2 

2 

. 6 

14 

.110 

95 

. 71 

97 

. 11 

9 

. 1 

1 

. 1 

1 

. 1 

1 

. 2 

1 

. 5 


. 1 

1 

. 1 

1 

. 2 

2 

. 1 

1 

. 1 

1 

. 1 

1 

. 1 

1 

. 2 


. 1 

1 

. 1 

1 

. 8 

8 

. 8 

8 

. 4 

4 


2 


7 

. 16 

26 

. 1 

1 

. 1 


. 12 


. 12 


. 24 


. 60 

60 

... 24 


. 48 

48 

. 8 


. 24 


. 24 


. 24 


. 24 

48 

. 24 


. 14 

14 

. 3 

3 

. 2 


. 1 

1 

. 1 

1 

. 1 


. 1 

1 

. 2 

2 

. 20 


. 2 


. 2 


. 2 


. 7 

7 

. 6 


. 6 


. 12 



29 





























































WRIGHT AERONAUTICAL ENGINES 


Quantity per engine 

Part No. Part Name T-2 T-3 

15759 Cover, Oil filter . 1 1 

15761 Plug, V 4 x 16.... 4 4 

15763 Dowel, J4 x A. 24 24 

*15767 Housing, Camshaft L. H. 1 

*15768 Housing, Camshaft R. H. 1 

15769 Cover, Camshaft Housing. 4 

15770 Gasket, Camshaft Housing Cover. 4 

*15772 Hub, Propeller . 1 

15773 Flange, Propeller Hub . 1 

15779 Bearing, Camshaft . 2 

15780 Key, #8 Woodruff . 2 2 

15781 Stud, A x 18 x 24 x 1A. 40 24 

15782 Bolt, Crankshaft Bearing . 2 

15783 Stud, A x 14 x 20 x 2. 7 16 

15784 Nut, Propeller Hub outer . 1 

15785 Nut, Propeller Hub inner . 1 

15787 Ring, Prop. Hub Centering Small. 1 

15788 Ring, Prop. Hub Centering Large. 1 

15789 Bolt, Prop. Hub. 8 8 

15790 Nut, Crankshaft Ball Bearing. 1 

15791 Slinger, Crankshaft Oil. 1 

*15792 Camshaft L. H. 1 

*15793 Camshaft R. H. 1 

15794 Gear, Crankshaft . 1 

15796 Gear, Vert. Shaft Drive. 1 

15797 Gear, Mag. Drive . 1 1 

15798 Gear, Mag. 2 2 

15799 Gear, Camshaft . 2 

15801 Gear, Camshaft Drive Shaft. 2 

15803 Pinion, Camshaft Drive Shaft. 2 

15807 Stud, A x 18 x 24 x 1A. 13 13 

15809 Bolt, Crankshaft Bearing slotted. 8 

15810 Stud, Crankshaft Bearing Rear. 2 

15811 Washer, II x l/ 8 x A. 2 2 

15812 Washer, II x 1 x A. 18 18 

18813 Nut, Castled A x 18. 18 18 

15815 Stud, 3/ x 16 x 24 x 3A. 16 

*15821 Sleeve, Camshaft Bearing. 4 

15822 Tube Breather. 2 

15823 Cap, Breather Tube. 2 

15824 Gasket, Camshaft Housing bearing. 8 

15825 Gasket, Breather tube. 2 

15828 Key, #5 Woodruff. 2 

15831 Cover, Crankcase front. 1 

15832 Clip, Wire manifold... 16 8 

*15833 Manifold, Cyl. Ignition wire outside front. 2 2 

*15834 Manifold, Cyl. Ignition wire outside rear. 2 2 

15837 Stud, A x 18 x 24 x 7/ . 16 20 

*15840 Cap, Crankshaft Bearing front. 1 

15845 Gasket, Camshaft Housing. 4 

15851 Hose, l/ 4 I. D. x ltt O. D. x 3/ 4 . 6 

15857 Washer, W 2 x 25/ x .175. 1 

15866 Washer, If x 13/ x A. 1 1 

15867 Nut, Slotted H x 16. 2 2 

15869 Nut, Crankshaft Gear. 1 

15870 Key, Str. % x / 4 x Hi. 1 1 

15871 Cover, Camshaft Housing front. 2 

15872 Gasket, Camshaft Housing Cover fr. 2 

15873 Bearing, Camshaft drive shaft gear. 2 

* Not to be ordered as spares. 


30 





























































WRIGHT AERONAUTICAL ENGINES 


Part No. 

15875 

15876 

15877 

15878 

15879 

15880 

15881 

15882 

15883 

15884 

15885 

15886 
15888 

15893 

15894 

15895 

15896 

15897 

15905 

15906 

15909 

15910 

15911 

15912 

15913 
15927 
15939 

*15940 

*15941 

16026 

16027 

16044 

16045 

16075 

16076 

16079 

16080 
16081 
16082 

16084 

16085 

16086 
16087 
16093 

16095 

16096 

16098 

16099 
16105 

*16106 

16107 

16108 
16109 
16114 
16116 

16117 

16118 

16119 

16120 

* Not 


Part Name 

Cage, Mag. gear b. b. 

Retainer, Mag. gear b. b. 

Spacer, .792 I. D. x 1. O. D. x y & . 

Nut, 154 x 12 x . 

Gasket, Camshaft Drive Housing.. 

Retainer, Vert. Shaft b. b. 

Screw, #10 x 24 x 54. 

Nut, Castled 54 x 20 x . 

Dog, Camshaft Drive, upper. 

Dog, Camshaft Drive, lower. 

Shaft, Gun Control Drive. 

Bushing, lik x 154 x 2ix . 

Gasket, Camshaft dr. shaft pinion housing. 

Bearing, Gun Control gear. 

Dowel, Gun control gear bearing. 

Nut, Packing 2% x 16. 

Stud, x 18 x 24 x liV. 

Bolt, 24 x 24 x 154.. 

Lock Ring, lik I. D. 

Cap, Tachometer shaft. 

Flange, Exhaust pipe.. 

Gasket, Exh. pipe flange.. 

Stud, 24 x 16 x 24 x 5 s4.. 

Stud, x 16 x 24 x 4M.. 

Stud, 24 x 16 x 24 x 4fk. 

Pin, 54 x §£.. 

Insert, Spark plug. 

Seat, Valve . 

Ring, Oil filter. 

Union, Soldering-Tee 54 x A x &. 

Union, Soldering-Str. 54 x tV. 

Plug, 54" pipe. 

Bearing, Conn. Rod. 

Retainer, Starter b. b. 

Cover, Starter. 

Spring, If x 1. 

Ball, dia. 

Pin, taper #4 x 154. 

Pin, tk x 124.--. 

Collar, Starter worm. 

Stud, 24 x 16 x 24 x 324. 

Screw, tfc x 18. 

Shaft, Starter drive-long. 

Body, Fuel Pump.. 

Gear, Fuel pump internal. 

Pinion, Fuel pump. 

Connection, Elbow 54 I. D. hose. 

Spring, tt x II.... 

Pipe, Cyl. water inlet tee. 

Connection, Cyld. water inlet tee. 

Pipe, Cyld. water inlet, front. 

Elbow, Cyld. water inlet. 

Connection, Cyl. water inlet elbow. 

Pipe, Camshaft hous. oil return. 

Nut, Packing % x 14. 

Plug, 1" Pipe. 

Bearing, Crankshaft large, lower. 

Bearing, Crankshaft large, upper. 

Bearing, Crankshaft small, upper. 

to be ordered as spares. 


Quantity per engine 

T-2 T-3 


2 

2 

2 

2 

2 

1 

8 

2 

2 

2 

2 

2 

2 

2 

2 

2 

4 

2 

2 

1 

12 

12 

8 

16 

32 

2 

24 

48 

1 

2 

3 

2 

12 

1 

1 

1 

1 

2 

2 

1 

7 
2 
1 
1 
1 
1 

3 
1 
2 
2 
2 
2 
2 

4 

8 
53 

2 

2 

5 


2 

2 

2 

1 

8 


2 


4 

2 

2 


2 

24 

1 

1 

3 


2 

2 

1 

1 

1 

1 


55 


/ 


31 





























































WRIGHT AERONAUTICAL ENGINES 


Quantity per engine 

Fart No. Part Name T-2 T-3 

16121 Bearing, Crankshaft small, lower. 5 

*16122 Nipple, Oil return pipe, lower. 4 4 

16123 Valve, Inlet & Ex.. 48 

16125 Gear, Oil pump drive. 1 1 

16126 Bearing, Oil pump drive gear. 1 

*16130 Pipe, Oil suction. 1 

*16139 Nipple, Oil return pipe, upper. 4 4 

16151 Stud, rk x 18 x 24 x 2 l / 8 . 6 6 

16156 Gasket, Fuel pump mounting flange. 1 1 

16162 Guide, Valve Ex. 24 

*16163 Cap, Crankshaft Bearing inter. 4 

*16185 Dowel, Prop. Hub. 1 1 

16201 Plug, Valve stem. 48 48 

16205 Magneto, Splitdorf S. S. 12. 2 2 

16207 Bushing, Cam Roller. 24 

16212 Housing, Crankshaft dr. shaft pinion. 2 

*16236 Cap, Crankshaft bearing centre. 1 

16237 Pin, Cam Roller. 24 

16238 Bushing, ^ x 18 x ik x 20 x II. 4 3 

16239 Screw, Cap ik x 20 x 1J4. 4 3 

16254 Housing, Camshaft Drive Dog. 2 

16257 Plate, Hub flange name. 1 1 

*16280 Crankcase, upper. 1 

*16288 Cylinder Block. 4 

*16289 Cylinder sleeve. 12 

16295 Hose, U/ 8 x HI x 3. 4 

16301 Gasket, Cyl. flange. 4 

16302 Shaft, Camshaft Drive. 2 

16303 Housing, Camshaft Drive shaft. 2 

16304 Cover, Vert. Shaft housing. 1 

16306 Housing, Camshaft drive. 1 

16307 Gear, Pump Drive. 1 1 

16309 Lock Ring, 1* I. D...... 1 1 

16310 Nut, 1-fk x 16 x . 1 1 

16312 Cage, #6204 b. b. 1 1 

16314 Gear, Vert, shaft upper. 1 

16315 Gear, Vert, shaft lower. 1 

16317 Gear, Gun Control. 2 

16319 Gear, Oil pump {J/ 8 face). 2 2 

16320 Gear, Pump Idler (i/ 8 face). 2 2 

*16321 Crankcase, lower. 1 

*16322 Pipe, Oil pressure. 1 

*16323 Flange, Oil press, pipe. 2 2 

16324 Gasket, Oil press, pipe flange. 2 2 

16325 Body, Oil pump. 1 1 

*16327 Screen, Oil suction pump, rear . 1 1 

*16328 Screen, Oil suction pump frame . 1 1 

16329 Gear, Pump drive—lower. 1 

16330 Bushing, Pump drive gear lower. 1 1 

16331 Cork, II x 7/ s . 1 1 

16332 Housing, Vert. Shaft. 1 

16333 Cap, Gun control gear brg. 2 

16335 Pipe, Water pump outlet. 2 

16336 Gasket, Water pump cover. 1 1 

16337 Rivet, x V 2 . ... 4 4 

16338 Stud, ik x 14 x 20 x lf$.112 120 

16339 Nut, * x 20 x*.112 120 

16340 Plug, 1 y 2 " pipe. 2 

*16341 Pipe, Camshaft housing feed. 2 

* Not to be ordered as spares. 


32 





























































WRIGHT AERONAUTICAL ENGINES 


Part No. 

Part Name 

Quantity per engine 
T-2 T-3 

16342 

Body, Water pump. 


1 

16343 

Cover, Water pump. 



*16344 

Impeller, Water pump. 


1 

*16345 

Shaft, Water pump. 


1 

16347 

Gasket, % x 1^ x & . 


1 

16348 

Plug, Water pump cover thrust. 

. 1 

1 

16349 

Bushing, Water pump shaft. 


1 

16350 

Button, Water pump thrust.. 


1 

16351 

Bushing, Water pump shaft, lower. 

. 1 

1 

16352 

Nut, Packing 134 x 12. 

. 1 

1 

16353 

Gland, Water pump packing.. 

. 1 


*16354 

Flange, 1% O. D. pipe. 

. 2 


16355 

Gasket, 134 O. D. pipe. 

. 2 

2 

16356 

Plate, Oil pump cover. 



16357 

Stud, 24 x 16 x 24 x 234. 

. 2 

2 

*16361 

Pipe, Cyl. water L. H. 



*16362 

Pipe, Cyl. water R. H. 

. 1 


16363 

Screw, Lock 34 x 20 x if. 

. 1 

1 

16365 

Cover, Generator Drive. 

. 1 


16366 

Gasket, Generator Drive Cover. 

. 1 


16367 

Gasket, Vert, shaft housing cover. 

. 1 

1 

*16368 

Pipe, Vert, drive oil feed. 

. 1 


16373 

Gasket, Camshaft drive housing. 

. 3 

3 

16374 

Piston . 

. 12 


16375 

Stud, 24 x 16 x 24 x 124. 

. 4 

4 

16376 

Stud, 24 x 16 x 24 x 2 tV. 

. 2 

2 

16377 

Stud, 34 x 20 x 28 x 1. 

. 14 

14 

*16378 

Manifold, Oil, front . 

. 1 


*16379 

Manifold, Oil, rear . 

. 1 


*16380 

Tube, Oil manifold front . 

. 1 


*16381 

Tube, Oil manifold rear . 

. 1 


*16382 

Tube, Oil manifold inter. 

. 4 


16383 

Tube, A O. D. x 4" . 

. 1 


*16384 

Flange, Oil manifold. 

. 1 


16385 

Gasket, tFs pipe flange. 

. 1 

1 

*16386 

Flange, tk pipe. 

. 7 

3 

16387 

Gasket, pipe flange. 

. 7 

7 

16388 

Clip, A pipe. 

. 4 

4 

16389 

Bushing, it x 54 x V* . 

. 1 

1 

16390 

Stud, x 18 x 24 x 134. 

. 1 

4 

16391 

Worm, Starter 15 to 1. 

. 1 


16392 

Wheel, Starter worm—15 to 1. 

. 1 


*16393 

Housing, Starter. 

. 1 


*16396 

Bushing, Starter worm—large . 

. 1 


*16397 

Bushing, Starter worm—small . 

. 1 


16398 

Washer, Thrust Bearing. 

. 1 

1 

16399 

Gear, Starting Mag. 

. 1 


16400 

Pinion, Starting mag. 

. 1 


16401 

Tube, Oil rk x 824. 

. 1 

1 

16403 

Tube, Oil tk x 6§£ . 

. 1 


16404 

Lock, Starting mag. 

. 1 

1 

16405 

Spring, Starting mag. 

. 1 

1 

16406 

Lock pad, Starting mag. 

. 1 

1 

16407 

Stud. Starting Mag. 

. 2 

2 

16408 

Rein, Starting Mag. Strap. 

. 2 

2 

16409 

Strap, Starting Mag. 

. 1 

1 

16411 

Link, Mag. advance R. H. 

. 1 

1 

16412 

Bell Crank. 90° 27/ s x 334 R- H. 

. 1 

1 

16414 

Magneto, Starting (Drive 100). 

. 1 



* Not to be ordered as spares. 


33 





























































WRIGHT AERONAUTICAL ENGINES 


Part No. 


Part Name 


*16415 

*16416 

16417 

16418 
*16419 

16432 

16436 

*16438 

16440 

16441 

16442 

16443 

16444 

16445 

16446 

16447 

16448 

16449 
16458 
16460 
16464 

*16470 

16473 

16474 
*16476 
*16477 

16480 

16481 

16482 

16483 

16484 

16485 
*16486 
*16487 
*16488 
*16489 
*16490 
*16491 

16492 

*16493 

*16497 

*16498 

16500 

16501 
*16502 

16503 

16504 

16505 
16507 

*16514 

*16515 

16516 

16518 

*16538 

16542 

16543 

16544 
*16548 
*16549 


Gear, Coupling 23 teeth .—.. 

Gear, coupling 24 teeth .. 

Gear, Mag. shaft.. 

Gear, Mag. dr. shaft.. 

Manifold, Ig. wire.. 

Adapter, 1" pipe thrd. % pipe thd.. 

Connection, St. y I. D. Hose. 

Seat, Valve.. 

Ball End, y dia.. 

Yoke end, ffc dia. threaded. 

Yoke end, & dia. plain .:.. 

Rod, Mag. advance... 

Nut, Adj. Ball end. 

Bell Crank, 90° 27/ 8 x 3% L. D. 

Lever, 2" Str. 

Bolt, y x 24 x lil. 

Bushing, y x *4 x V 2 . 

Stud, Crankshaft bearing centre. 

Plug, y 8 pipe. 

Carburetor, N. A. U-6-T. 

Bell Crank 90° x 2 x 2.. 

Tee, Carburetor. 

Nut, Packing 2y x 16 x H. 

Extension, Carb. tee. 

Manifold, Cyl. ig. wire, inside fr. 

Manifold, Cyl. ign. wire inside rear..... 

Body, Air horn. 

Gasket, Air horn body.. 

Rod, Carb. control.. 

Hose, y x y 8 x 2. 

Yoke end single.. 

Yoke end special. 

Pipe, Air horn drain.. 

Pipe, Fuel pump drain. 

Pipe, Gasoline feed.. 

Extension, Gasoline feed pipe.. 

Pipe, Carb. tee water. 

Extension, Carb. tee water inlet pipe..... 

Nut, #10 x 32 L. H. x *. 

Pipe, Carb. tee water outlet branch.... 

Pipe, Cyl. water outlet.. 

Extension, Cyld. water outlet pipe. 

Clip, V 2 O. D. pipe. 

Tee, Water pump drain. 

Extension, Carb. tee water outlet pipe 

Gasket, Carb. 

Gasket, Intake Manifold tee. 

Hose, x 1H x 2V 2 . 

Marker, Ign. wire.. 

Crankcase, upper. 

Crankcase, lower. 

Plate, Engine Data. 

Plate, Exhaust port.,... 

Cylinder Sleeve. 

Pin, Piston ..... 

Plug, Piston pin. 

Bushing, Conn. Rod. 

Cap, Crankshaft front bearing. 

Cap, Crankshaft center bearing. 


* Not to be ordered as spares. 


Quantity per engine 
T-2 T-3 


2 

2 

2 

2 

1 

1 

4 

4 

1 

1 

1 

4 

1 

1 

2 

2 

6 

8 

2 

1 

2 

2 

2 

2 

2 

1 

2 

2 

4 

2 

2 

1 

1 

1 

1 

2 

1 

4 

1 

2 

2 

2 

1 

1 

4 

4 

4 

2 sets 


1 

12 


1 

6 

48 

4 

1 

1 

4 

1 

1 

2 

2 

8 

1 


2 

2 

2 

2 

2 

1 

1 


4 


2 

4 


1 set 
1 
1 
1 

12 

12 

24 

12 

1 

1 


34 





























































WRIGHT AERONAUTICAL ENGINES 


Quantity per engine 

Part No. Part Name T-2 T-3 

*16550 Cap, Crankshaft inter, bearing.. 1 

16566 Valve, Intake & Exhaust.-. 48 

16568 Shaft, Rocker Arm. 8 

16571 Stud, Crankshaft Brg.—short. 8 

16572 Guide, Valve—Intake . 24 

16573 Guide, Valve-Exh. 24 

16574 Roller, Cam.. 24 

16577 Gear, Vert, shaft dr.i. 1 

16578 Gear, Crankshaft... 1 

16581 Pin, Escutcheon .057 x Y\ . 2 6 

16582 Tube, Breather. 2 

16583 Cap, Breather tube. 2 

16584 Housing, Vert, shaft. 1 

16585 Gear, Gun Control... 2 

16586 Housing, Gun control gear. 2 

16587 Bushing, Oil pump dr. gear... 1 

16588 Spacer, Crankshaft gear-- 1 

16589 Nut, Crankshaft gear. 1 

16590 Cover, Crankcase front. 1 

16591 Housing, Camshaft drive. 1 

16594 Cap, Oil press, relief.-. 1 

16595 Housing, Camshaft dr. shaft pinion. 2 

16596 Cover, Camshaft Housing, rear.. 2 

16597 Gasket, Camshaft housing cover, rear. 2 

16598 Bushing, Tach. shaft. 1 

16599 Shaft, Tach. Drive. 

16600 Adapter, Tach. Coupling. 2 

*16602 Pipe, Cyl. water outlet front. 2 

16604 Gasket, Camshaft housing cover. 2 

16607 Gasket, Ex. pipe flange. 12 

16609 Stud, Crankshaft Bearing long. 8 

16610 Bearing, Crankshaft front upper. 1 

16611 Bearing, Crankshaft front lower. 1 

16612 Bearing, Crankshaft center, upper- 1 

16613 Bearing, Crankshaft center lower. 1 

16614 Bearing, Crankshaft intermed., upper. 5 

16615 Bearing, Crankshaft intermed., lower. 5 

16616 Stud, ^ x 16 x 24 x 2M. 16 

*16618 Manifold, Oil front... 1 

*16619 Tube, Oil Manifold front . 1 

*16620 Tube, Oil manifold rear .-. 

*16621 Tube, Oil manifold intermed. 4 

*16622 Tube, Oil manifold center . 1 

16624 Link, Mag. advance L. H. 1 1 

*16626 Pipe, Oil press.-. 

*16627 Pipe, Oil suction.-. 1 

16629 Gasket, Breather tube. 2 

16630 Stud, ^ x 16 x 24 x 3s*2. 2 

*16631 Manifold, Oil rear. 1 

16632 Cover, Generator Drive. 1 

16633 Gasket, sq. x 1M I. D. 1 

16634 Stud, 3^ x 16 x 24 x HI. 16 

16636 Stud, Y x 20 x 28 x 1*. 4 

16637 Plug, Rocker Arm shaft. 4 

16638 Body, Air horn. 1 

16639 Screw, Camshaft housing cover. 22 

16640 Nut, Camshaft Housing cover. 16 

16642 Clamp, Ign. wire manifold. 1 1 

* Not to be ordered as spares. 


35 




























































WRIGHT AERONAUTICAL ENGINES 

Quantity per engine 

Part No. Part Name T-2 T-3 

16643 Nut, V x 24 P. special... 

16644 Dowel, rk x V x A....- 24 24 

16645 Plunger, Oil press, relief. 1 

*16647 Nozzle, Vert, drive oil feed pipe- 1 

16449 Hose, 1" x 1A x 2 V . ° 

*16650 Extension, Cyl. water outlet conn. 4 

*16651 Connection, Cyl. water outlet.—-- 4 

*16652 Tube, Oil suction filter-........- 

16653 Tube, rk x 511....... j 

16654 Rod, Mag. Advance. } 

16655 Plug, V x 16 x 1"- 1 

16659 Housing, Camshaft dr. shaft...... 2 


16660 Casing, Camshaft Drive Shaft. 2 

16661 Nut, Camshaft dr. shaft casing. 

16662 Shaft, Camshaft Drive.-.— 2 

16663 Dog, Camshaft Drive, upper - 2 

16664 Dog, Camshaft drive, lower - 2 

16665 Bolt, Camshaft drive dog clamp. 2 

16666 Spring, Camshaft dr. shaft thrust.-. 2 

16667 Pin, & x M-.. 2 

16668 Lock Ring, 1* I. D....... -.... 1 

16669 Gasket, Cyl. flange. 4, 

16670 Gasket, Intake Ell;...:...._-_ 4 

16671 Bolt, Crankshaft bearing. 2 

*16672 Connection, Cyl. water outlet. 6 

*16674 Flange, Water pipe coupling, threaded. 2 

*16675 Flange, Water pipe coupling.. 2 

16676 Packing, M x Irk x V A __ 2 

16677 Screw, rk x 24 x &...-------..... 4 

16678 Rod, Carb. control..—. 2 

16681 Pipe, Camshaft Housing Oil Return. 4 

16684 Gasket, Camshaft Housing. 4 

16685 Gasket, Camshaft Housing Bearing large. 4 

16686 Gasket, Camshaft Housing Brg. small. 8 

16687 Washer, ft! x Ys x .-. ' 2 

16688 Washer, Ax^x 3*2 ___.______ 16 

16689 Nut, Slotted #10 x 32 x rk..... 8 

16690 Bolt, #10 x 32 x §£.... 8 

16691 Screw, fill. hd. #10 x 32 x §£... 2 

16693 Plug, Expansion \% n ......;_ 1 

16695 Washer, Camshaft dr. shaft pinion... 2 2 

16696 Cap, Crankshaft Bearing, rear. 1 

16697 Bolt, V x 24 x V . 2 

16698 Plug, VT' pipe ... 2 

*16699 Pipe, Camshaft Housing feed. 2 

16700 Cork, M x V __ 2 

*16702 Flange, IV pipe.. 2 

*16703 Pipe, Water pump outlet. 2 

*16704 Pipe, Cyl. water R. H. . 1 

*16705 Pipe, Cyl. water L. H. 1 

16707 Stud, V x 16 x 24 x IV .-__ 4 8 

16708 Cover, Water pump. 1 

16716 Stud, V x 16 x 24 x Irk.... 4 

16718 Bushing, & x .317 x §1. 1 1 

16719 Shaft, Fuel pump pinion. 1 1 

16722 Cover, Fuel Pump. l 

*16723 Pipe, Carb. float chamber. 1 

16734 Pinion, Camshaft dr. shaft... 2 


* Not to be ordered as spares. 


36 




























































WRIGHT AERONAUTICAL ENGINES 


Part No. 

16736 

16737 
16749 
16761 
16764 
16769 

16773 

16774 

16775 

16777 

16778 
16781 
16796 
16800 

*16801 

*16802 

*16803 

*16804 

*16805 

*16806 

*16810 

16819 

16820 
16821 

*16822 

16823 

*16825 

*16830 

16836 

16868 

16890 

16924 

16925 
16939 
17047 
17085 

17090 

17091 
*17093 
*17094 
*17095 
*17096 

17097 

*17098 

17099 

17100 

17101 

17102 
*17103 
*17104 
*17105 

17106 

*17107 

*17108 

*17109 

*17110 

17111 

*17112 

*17113 


Quantity per engine 


Part Name T-2 T-3 

Bushing, Reducing $4 x J4__ 1 

Connection Str. V 2 I. D. Hose.... 1 

Flange, Prop. Hub.-. 1 

Tee, y A x y A x Ys ... 1 

Gear, Camshaft.... 2 

Plug, Expansion 1 % . 1 

Screw, Mag. Coupling adj. 2 

Nut, Mag. coupling adj. screw. 2 

Hub, Mag. coupling adj_ 2 

Disc, Mag. Coupling. 2 

Nut, Slotted fis x 18 x .. 2 

Tee, %x Ya xYa . 1 

Bushing, Cam Roller_ 24 

Connection, % I. D. Hose.. 2 

Pipe, Intake Ell. water. 2 

Extension, Intake EH. water inlet pipe. 1 

Pipe, Carb. feed.. 1 

Pipe, Intake EH. water Outlet branch. 1 

Extension, Intake ell. water outlet branch pipe.... 1 

Pipe, Cyl. water outlet branch. 1 

Pipe, Fuel pump outlet. 1 

Connection, Str. % x Yz .—. 3 

Connection, Elbow Ya x Yz .. 6 

Valve, Check.... 1 

Pipe, Fuel pump by pass... 1 

Adapter, Yz pipe. 2 

Extension, Carb. feed pipe. 1 

Pipe, Carb. float chamber. 1 

Nut, rW x 24 x . 20 

Coupling Mag. 2 

Rocker, Valve.-. 24 

Pin, Cam Roller. 24 

Washer, Valve spring, upper. 48 

Stud, Ys x 16 x 24 x 3iV.. 8 

Stud, Dowel $4 x 16 x liW__ 2 

Ring, Pump Drive gear. 1 

Bearing, Conn. Rod. 12 

Gland, Water pump packing_ 1 

Camshaft, R. H. 1 

Camshaft, E. II. 1 

Housing, Camshaft R. H. 1 

Housing, Camshaft E. H_ 7 

Bearing Camshaft. 2 

Sleeve, Camshaft bearing.. 4 

Gear, Pump Drive, lower. 1 

Piston. 12 

Gear, Vert, shaft, lower. 1 

Gear, Camshaft dr. shaft. 2 

Pipe, Cyl. water inlet.......— 2 

Extension, Cyl. water inlet pipe.-. 6 

Flange, Yz pipe...-.. 8 

Gasket, Yz pipe flange. 8 

Cylinder Block. 4 

Housing, Camshaft dr. shaft gear brg. 2 

Bearing, Camshaft dr. shaft gear, upper ...•_ 2 

Bearing, Camshaft dr. shaft gear, lower .:.. 2 

Gear, Vert, shaft upper-- 1 

Crankshaft . 1 

Hub, Propeller. 1 


* Not to be ordered as spares. 


37 



























































WRIGHT AERONAUTICAL ENGINES 


Part No. Part Name 

17114 Ring, Propeller Hub centering small. 

17115 Ring, Prop. Hub centering, large—. 

17116 Nut, Prop. Hub, outer ---- 

17117 Nut, Prop. Hub, inner ... 

17118 Nut, Crankshaft b.b..........—- 

17119 Cover, Camshaft Housing---... 

17120 Screw, Camshaft bearing... 

17121 Stud, Camshaft Housing Cover. 

17123 Carburetor NA-U6-T. 

*17124 Ell. Intake...-- - 

*17125 Pipe, Cyl. water outlet, R. H. 

*17126 Pipe, Cyl. water outlet L. H. ...........- 

*17127 Extension, Cyl. water outlet pipe. 

17128 Hub, Mag. gear coupling.... 

17129 Cage, Mag. gear b. b...— 

17130 Retainer, Mag. gear b. b.... 

17131 Slinger, Mag. gear oil...,—..... 

17132 Packing, l^x 2jfe... 

17134 Gasket, x 2^s x ....... ... 

17135 Nut, Packing 2*4 x 16.....:—-........... 

17136 Nut, Packing % x 14..,—... 

17138 Cover, Vert, shaft housing.—...- 

*17139 Pipe, Vert, drive oil feed.i—. 

17140 Cover, Oil pump_.................. 

17144 Clip, Wire manifold—.:.. 

*17145 Manifold, Cyl. ign. wire inside intermed. 

*17146 Manifold, Cyl. ign. wire inside front. 

17147 Slinger, Crankshaft oil ... 

17148 Flange, Exhaust pipe ..•.. 

17150 Screw, rd. hd. #14 x 20 x . 

*17151 Flange, Oil manifold .,...... 

*17152 Flange, tfr pipe ....... 

17164 Piston, 5.3 to 1_.... 

*17254 Connecting Rod, inner .. ......... 

*17255 Connecting Rod, outer -...... 

17256 Bolt, Conn. Rod, inner .... 

17257 Bolt, Conn. Rod, outer .. 

17272 Spark Plug, B. G.—Type 1 x 4. 

*17285 Crank, Starting .... 

*17286 Sleeve, Starting Crank. 

*17287 Jaw, Starting Crank ... 

17288 Bearing, Starting Crank .. 

17299 Collar, x l/ 8 x V A .,.... 

17290 Pin, Str. &x 1 A.....w...... 

17291 Pin, Str. 5 3 2 x 1&... 

17306 Shaft, Starter drive.... 

17307 Retainer, Clutch Spring...,..—. ........ 

17308 Spring, Clutch ....-... 

17309 Retainer, Clutch plate, front ..... 

17310 Retainer, Clutch plate, rear .. ...... 

17311 Shim, Clutch plate . ..... 

17312 Plate, Clutch, outside spline . 

17313 Plate, Clutch, inside spline . 

*17316 Shaft, Starter worm... 

17317 Bearing, Starter worm wheel... 

17318 Nut, Starter Drive Shaft. 

17319 Lock Ring, 1* I. D... 

17320 Washer, Starter Drive Shaft............. 

*17321 Housing, Starter —. 

* Not to be ordered as spares. 


Quantity per engine 
T-2 T-3 

1 
1 
1 
1 
1 
2 
4 
2 
2 
4 
1 
1 
6 
2 
2 
2 
2 
2 
2 
2 
8 
X 
1 
1 

12 

2 

..... ' 2 

1 

12 

2 

:.... i 

4 

12 

6 

6 

24 

12 

24 

1 

1 

1 

1 

4 

2 

4 

1 

1 

4 

1 

1 

2 

8 

7 

1 

1 

1 

1 

1 

1 


38 
































































Part No. 

17322 

17323 

17324 

17325 

17326 

17327 

17330 

17337 

17338 

17339 

17342 

17343 

17344 

17345 

17346 

17347 

17349 

17350 

17351 

17352 


WRIGHT AERONAUTICAL ENGINES 


Quantity per engine 


Part Name T-2 T-3 

Retainer, Starter B. B. 1 

Cover, Starter Housing . 1 

Gasket, 2§£ x 4% x s’*. 1 

Bushing, Starter Housing . 1 

Bushing, 7/s x V/s x HI._. 1 

Spring, Starter Worm Lock. 1 

Stud, ^ x 16 x 24 x 4/s .— 5 

Retainer, Thrust bearing .. 1 

Ratchet, Starter fixed ._. 1 

Ratchet, Starter movable . 1 

Support, Starting Mag. gear.... 1 

Gear, Starting Mag. drive .. 1 

Gear, Starting Mag. inter. 1 

Gear, Starting Mag. 1 

Shaft, Starting Mag. gear inter. 1 

Screw, Oval Hd. #8 x 3*2 x 2bs . 2 

Worm, Starter, 15 to 1. 1 

Wheel, Starter worm, 15 to 1. 1 

Magneto, Starting . 1 

Spring, 1§J x 2% x 2/s . 1 


/ 


39 






















WRIGHT AERONAUTICAL ENGINES 

Numerical Assembly List 

T-2 and T-3 Engines 

Quantity per engine 

Assy. No. Assy. Name T-2 T-3 

12548 Manifold, Ig. wire outside rear R. H. 1 1 

12549 Manifold, Ig. wire outside rear L. H. 1 1 

12550 Manifold, Ig. wire outside front R. H. 1 1 

12551 Manifold, Ig. wire outside front L. H. 1 1 

12552 Pipe, Water pump outlet R. H. 1 

12553 Pipe, Water pump outlet L. H... 1 

12607 Tee, Cyld. Water inlet..... 2 

12608 Elbow, Cyld. water inlet......... 2 

12609 Pump, Oil ...—. 1 

12652 Filter, Oil . 1 1 

12653 Pipe, Oil pressure .. 1 

*12660 Engine, after valve timing. 1 

12661 Pipe, vert, shaft oil feed. 1 

12662 Screen, oil suction pump- 1 1 

12663 Pipe, Camshaft Housing feed.,..... 1 

12664 Shaft and Impeller, Water pump- 1 1 

12665 Pump, water ......:--- 1 

12666 Valve, Oil press, relief.... 1 

12667 Piston . 12 

12668 Pin, Piston . 12 

12669 Hub, Propeller ...-. 1 

12670 Hub and Dowel, Propeller- 1 

12671 Flange, Propeller Hub. 1 

12672 Crankshaft .-. 1 

12674 Connecting Rod Outer-- 6 

12676 Connecting Rod Inner . 1 

12677 Crankshaft and Conn. Rod... 1 

12679 Tube, Oil suction filter... 1 

12683 Manfold, Ig. wire. 1 

12686 Camshaft L. H. 1 

12687 Camshaft R. H. 1 

12691 Housing, Camshaft L. H... 1 

12692 Housing, Camshaft R. H. 1 

12695 Pump, Fuel ..'.. 1 

12696 Housing, Vert, shaft . 1 

12697 Housing, Camshaft Drive . 1 

12698 Shaft, Gun Control Drive. 2 

12699 Gear and Bearing Camshaft dr. shaft. 2 

12700 Shaft, Camshaft Drive. 2 

12701 Housing, Vertical Shaft Machining. 1 

12702 Gear, Fuel pump internal...... 1 1 

12703 Manifold, Oil . 1 

12704 Starter, Hand ...,. 1 

12705 Tube, Oil ... 1 1 

12706 Strap, Starting Mag. 1 

12707 Body and Cover Plate, Oil Pump. 1 

12708 Crankshaft and Plug. 1 

12711 Manifold, Ig. wire inside rear R. H..... 1 

12712 Manifold, Ig. wire inside rear L. H. 1 

12713 Manifold, Ig. wire inside front R. H. .. 1 

12714 Manifold, Ig. wire inside front L. H. 1 

12718 Coupling, Magneto . 2 

12719 Body and Cover, Water Pump. 1 

12721 Rocker, Valve . 24 

12723 Valve and Plug. 48 

12724 Rod, Mag. Advance. 1 

* Not to be ordered as spares. 


40 


























































WRIGHT AERONAUTICAL ENGINES 


Quantity per engine 

Assy. No. Assy. Name T-2 T-3 

12725 Pipe, Outboard Drain . 1 1 

12726 Pipe, Gasoline Feed ... 1 

12727 Pipe, Carb. tee water inlet . 1 

12728 Pipe, Carb. tee water outlet . 1 

12730 Stud and Bearing, Crankcase. 1 

12750 Housing, Camshaft Drive Shaft. 2 

12763 Tee, Carburetor, front . 1 

12764 Tee, Carburetor, rear . 1 

*12765 Engine, before valve timing . 1 

12767 Carburetor and Tee, front . 1 

12768 Carburetor and Tee, rear . 1 

12769 Shaft, Mag. drive . 2 

12770 Mag. and Gear Starting . 1 

12771 Mag. and Gear R. H. 1 

12772 Mag. and Gear L. H. 1 

12773 Cover, Camshaft Housing R. H. rear. 1 

12774 Cover, Camshaft Housing L,. H. rear. 1 

12775 Tube, Breather . 2 

12776 Crankcase, Stud and Brg. 1 

12777 Rod, Carb. control .... 2 

12778 Rod, Carb. control complete . 2 

12779 Rod, Mag. advance complete . 1 

12780 Carburetor Tee and Air Horn. 1 

12781 Cylinder, complete R. H. front . 1 

12782 Cylinder, complete R. H. rear . 1 

12783 Cylinder, complete L. H. front . 1 

12784 Cylinder, complete L. H. rear . 1 

12785 Pipe, Cyl. water outlet. 2 

12808 Casing and Nut Camshaft Drive Shaft. 2 

12811 Connection, Cyl. water outlet... 4 

12812 Manifold, Oil . 1 

12813 Pipe, Water pump outlet R. H. 1 

12814 Pipe, Water pump outlet L. H... 1 

12818 Pipe, Camshaft Housing feed. 1 

12819 Pipe, Carb. float chamber. 1 

12830 Pipe, Intake Ell. Water outlet . 1 

12831 Pipe, Intake Ell. Water inlet . 1 

12832 Pipe, Oil pressure . 1 

12834 Pipe, Carburetor feed . 1 

*12850 Engine, after valve timing. 1 

12853 Rocker, valve . 24 

12855 Pipe, Cyl. water inlet . 2 

12856 Pipe, Cyl. water outlet R. H. 1 

12857 Pipe, Cyl. water outlet L. H. 1 

12858 Pipe, Vert, shaft oil feed. 1 

12859 Pump, Oil . 1 

12860 Pump, Water . v . 1 

12861 Valve, Oil press, relief. 1 

12862 Piston . 12 

12863 Pin, Piston . 12 

12864 Hub, Propeller . 

12865 Hub and Dowel, Propeller. 

12866 Hub Flange, Propeller ... 

12867 Crankshaft . 1 

12869 Conn. Rod outer . 6 

12871 Conn. t Rod inner . 6 

12872 Crankshaft and Conn. Rod. 

12873 Tube, Oil suction filter... 

12876 Crankcase, Upper and Lower Machining. 1 

* Not to be ordered as spares. 


41 





























































WRIGHT AERONAUTICAL ENGINES 


Quantity per engine 

Assy. No. Assy. Name T-2 T-3 

12877 Manifold, Ign. wire. 1 

12879 Camshaft R. H.„„.. 1 

12880 Camshaft L. H. 1 

12881 Camshaft, Machining, R. H..:. 1 

12882 Camshaft, Machining, L. H... 1 

12883 Housing, Camshaft R. H„..... 1 

12884 Housing, Camshaft L. H. 1 

12887 Pump, Fuel .. 1 

12888 Housing, Vert, shaft . 1 

12889 Housing, Camshaft Drive . 1 

12890 Gear and Brg. Camshaft dr. shaft... 2 

12891 Shaft, Camshaft Drive... 2 

12892 Housing, Vertical Shaft Machining. 1 

12893 Starter, Hand ...,.. 1 

12894 Crankshaft and Plug. 1 

12895 Manifold, Ig. wire inside rear R. H......... 1 

12896 Manifold, Ig. wire inside rear L. H. 1 

12897 Manifold, Ig. wire inside front R. H. 1 

12898 Manifold, Ig. w r ire inside front L. H. 1 

12899 Manifold, Ig. wire inside inter. R. H. 1 

12900 Manifold, Ig. wire inside inter L,. H. 1 

12902 Valve and Plug... 48 

12903 Rod, Mag. advance.. 1 ' 

12904 Housing, Camshaft dr. shaft... 2 

12905 Ell. Intake R. H. 2 

12906 Ell. Intake L. H. 2 

12907 Carburetor and Ell. front . 1 

12908 Carburetor and Ell. rear . 1 

12909 Shaft, Mag. drive... 2 

12910 Mag. and Gear R. H. 1 

12911 Mag. and Gear L. H. 1 

12912 Tube, Breather . 4 

12913 Crankcase, Stud and Bearing. 1 

12914 Rod, Carb. control . 2 

12915 Rod, Carb. control, complete .:... 2 

12916 Rod, Mag. advance, complete . 1 

12917 Carb. EH. and Air Horn. 1 

12918 Cylinder, Complete R. H. front and L. H. rear.... 2 

12919 Cylinder, Complete L. H. front and R. H. rear_ 2 

*12920 Engine, before valve timing.......___,____ 1 

12921 Nut and Plug, Crankshaft gear. 1 

12922 Gear and Plug, Crankshaft. 1 

12923 Handle, Starter . 1 

12936 Body & Cover Plate, Oil Pump. 1 

12937 Housing & Bushing, Camshaft Drive Shaft Pinion 1 

12938 Stud and Bearing, Camshaft Housing, R. H. 1 

12939 Stud and Bearing, Camshaft Housing, L,. H. 1 

12940 Body and Cover, Water Pump...,. 1 

12942 Intake Ell. and Stud. 2 

12943 Stud and Core Plug, Cylinder. 4 

12944 Housing and Bushing, Starter.' 1 

12947 Handle, Starter . 1 

* Not to be ordered as spares. 




42 



















































WRIGHT AERONAUTICAL ENGINES 


Alphabetical Parts List 

of 


T-2 and T-3 Engines 


Part Name 

A 

Adapter, Tachometer Coupling.. 

Adapter, Tachometer Shaft . 

Adapter, % pipe. 

Adapter, 1" pipe thrd. pipe thrd.. 

B 

Ball, ^ dia. 

Ball Bearing ... 

Ball Bearing ... 

Ball Bearing . 

Ball Bearing . 

Ball Bearing... 

Ball Bearing #6306. 

Ball Bearing .... 

Ball Bearing #316 . 

Ball End dia... 

Bearing, Camshaft. 

Bearing, Camshaft drive shaft gear . 

Bearing, Camshaft drive shaft gear, lower 
Bearing, Camshaft drive shaft gear, upper 

Bearing, Conn. Rod... 

Bearing, Crankshaft large, lower . 

Bearing, Crankshaft large, upper . 

Bearing, Crankshaft small, upper . 

Bearing, Crankshaft small, lower .- 

Bearing, Crankshaft front upper . 

Bearing, Crankshaft front lower . 

Bearing, Crankshaft center upper. 

Bearing, Crankshaft center lower ... 

Bearing, Crankshaft intermed. upper .—. 

Bearing, Crankshaft intermed. lower ... 

Bearing, Gun control gear. 

Bearing, Oil pump drive gear.... 

Bearing, Starting Crank. 

Bearing, Starter worm wheel. 

Bell Crank, 90° x 2^ x 3R. H. 

Bell Crank, 90° x 2 x 2. 

Bell Crank, 90° x 27/* x 3% L. H. 

Body, Air Horn. 

Body, Fuel Pump... 

Body, Oil press, relief. 

Body, Oil pump. 

Body, Water pump. 

Bolt, #10 x 32 x Si. 

Bolt, ii x 24 x 7/% . 

Bolt, x 24 x 1 . 

Bolt, x 24 x ill. 

Bolt, Camshaft drive dog clamp. 

Bolt, Conn. Rod inner.-. 

Bolt, Conn. Rod outer .. 

Bolt, Crankshaft Bearing . 

Bolt, Crankshaft Bearing slotted.-. 

Bolt, Prop. Hub. 

Bushing, Cam Roller. 


Part Number 


T-2 

T-3 

.... 14800 

16600 

.... 16432 

16823 

.... 904 

904 

.... 6204-A 

6204-A 

.... 6205-A 

6205-A 

.... 6207-A 

6207-A 

.... 6208-A 

6208-A 

.... 6315-A 

6306-A 


6316-A 

.... 16440 

16440 

.... 15779 
.... 15873 

17097 


17110 


17109 

.... 16045 
._. 16118 
._. 16119 
.... 16120 
.... 16121 

17090 


16610 


16611 


16612 


16613 


16614 

.... 15893 
.... 16126 

16615 


17288 


17317 

.... 16412 

16412 

.... 16464 

16464 

.... 16445 

16445 

.... 16480 

16638 

.... 16093 

16093 

.... 14810 

14810 

.... 16325 

16325 

.... 16342 

16342 

.... 16697 

16690 

.... 15897 

15897 

.... 16447 

16447 


16665 

.... 15560 

17256 

.... 15754 

17257 

.... 15782 
.... 15809 

16671 

.... 15789 

15789 

.... 16207 

16796 


43 






















































WRIGHT AERONAUTICAL ENGINES 


Part 

Part Name T-2 

Bushing, Conn. Rod.. 15513 

Bushing, Fuel Pump Gear... 15253 

Bushing, Oil pump dr. gear... 

Bushing, Pump drive gear lower. 16330 

Bushing, Starter Housing . 

Bushing, Starter Worm (small) . 16397 

Bushing, Starter worm (large) ....... 16396 

Bushing, Tach. shaft......._.'.___ 

Bushing, Valve Rocker... 15563 

Bushing, Valve rocker oil feed...... 15564 

Bushing, Water pump shaft __.._._ 16349 

Bushing, Water pump shaft, lower_ 16351 

Bushing, 3/ x/ 2 x / 2 . 16448 

Bushing, Reducing 3/ x 54..... 

Bushing, x .317 x M......... 16718 

Bushing, % x 18 x A x 20 x II. 16238 

Bushing, 7/ x 154 x 111. 

Bushing, x §4 x /... ... 16389 

Bushing, 1A x 154 x 2-fa ...... 15886 

Button, Water pump thrust. 16350 

C 

Cage, Mag. gear b. b....... 15875 

Cage, #6204 b. b... 16312 

Camshaft, L. H..... 15792 

Camshaft, R. H....... 15793 

Cap, Breather Tube..... 15823 

Cap, Crankshaft Bearing—rear . 16236 

Cap, Crankshaft Bearing—Centre ... 16236 

Cap, Crankshaft Bearing—inter... 16163 

Cap, Crankshaft Bearing—front.. 15840 

Cap, Gun control gear brg.... 16333 

Cap, Oil press, relief.-. 15489 

Cap, Tachometer Shaft . 15906 

Carburetor, NAU-6-T. 16460 

Casing, Camshaft Drive Shaft._...... 

Clamp, 3/s Hose..... 11245 

Clamp, H I- D. Hose.. 14977 

Clamp, 1" I. D. Hose.-. 14649 

Clamp, l 1 / I. D. Hose...................... 15741 

Clamp, Hose 1// I. D......„... 

Clamp, Ign. wire manifold... 16642 

Clip, Wire manifold .....*. 15832 

Clip, Wire manifold .... 

Clip, y 2 O. D. pipe .-. 16500 

Clip, 3/s O. D. pipe..... 15283 

Clip, tjt pipe .........-....16388 

Cock, Spring key %" . 11796 

Collar, Starter worm..... 16084 

Collar, II x 1% x % ............ 

Connecting Rod, outer. 15753 

Connecting Rod, inner .. 15752 

Connection, Cyld. water inlet tee ..... 16106 

Connection, Cyld. water inlet elbow .-... 16109 

Connection, Cyld. water outlet . 16651 

Connection, Elbow / 2 I. D. Hose. 16098 

Connection, Elbow 54 x 3/ ... 

Connection, Str. x / x ^4...................................-... 

Connection, 3/ I. D. Hose......... 

Connection, St. 3/ I. D. Hose......... 16436 


Number 

T-3 

16544 

15253 

16587 

16330 

17325 


16598 

15563 

16349 
16351 
16448 
1 6736 
16718 
16238 
17326 
16389 
15886 

16350 


17129 

16312 

17094 

17093 

16583 

16549 
16540 

16550 
16548 

16594 

17123 

16660 

11245 

14977 

14649 

11235 

16642 

15832 

17144 

16500 

16388 

11796 

17299 

17255 

17254 


16672 

16820 

16819 

16800 

16436 


44 




























































WRIGHT AERONAUTICAL ENGINES 


Part Name 

Connection, Str. y 2 I. D. Hose.... 

Connection, 24 I. D. Hose. 

Cork, H x ii . 

Cork, M x 7/z . 

Cotterpin, A" Dia. x J4". 

Cotterpin, A x y 2 . 

Cotterpin, A x l..._.. 

Cotterpin, A x 24. 

Cotterpin, A x 1... 

Cotterpin, A . 

Cotterpin, A x 24. 

Cotterpin, A x 1J4.. 

Cotterpin, % x 1. 

Cotterpin, % x 1 y ._. 

Cotterpin, A x 2% . 

Coupling, Magneto . 

Coupling, Tachometer . 

Cover, Camshaft Housing .. 

Cover, Camshaft Housing, rear 
Cover, Camshaft Housing, front 

Cover, Crankcase, front.. 

Cover, Fuel press, relief. 

Cover, Fuel Pump. 

Cover, Generator Drive. 

Cover, Oil filter . 

Cover, Oil pump . 

Cover, Starter.... 

Cover, Starter Housing. 

Cover, Vert. Shaft Housing. 

Cover, Water pump... 

Crank, Starting.. 

Crankcase, lower ... 

Crankcase, upper . 

Crankshaft. 

Cylinder Block . 

Cylinder Sleeve. 


D 

Disc, Mag. Coupling.. 

Dog, Camshaft Drive, upper . 

Dog, Camshaft Drive, lower . 

Dowel, Conn. Rod Bushing. 

Dowel, Crankshaft Bearing...... 

Dowel, Gun control gear bearing. 

Dowel, Prop. Hub. 

Dowel, A x y x A. 

Dowel, A x 24. 

Dowel, % x A. 

Dowel, y x Si . 

Dowel, A x y . 


E 

Elbow, Cyld. water inlet. 

Ell, Intake.- 

Extension, Carb. tee ... 

Extension, Carb. tee water inlet pipe . 
Extension, Carb. tee water outlet pipe 

Extension, Cyl. water inlet pipe - 

Extension, Cyl. water outlet conn. 

Extension, Cyld. water outlet pipe. 


Part Number 


T-2 

T-3 


16737 


14826 


16331 

__ 

16700 


11207 


11169 


11445 


11707 




657 


656 


B-63 


14282 


11348 




16868 


10561 

. 15769 

17119 

. 15742 

16596 

. 15871 


. 15831 

16590 

. 14702 

14702 

. 16722 

16722 

. 16365 

16632 

. 15759 

15759 


17140 

. 16076 



17323 

. 16304 

17138 

. 16343 

16708 


17285 

. 16321 

16515 

. 16280 

16514 

. 15694 

17112 

. 16288 

17107 

. 16289 

16538 


16777 

...... 15883 

16663 

. 15884 

16664 

_ 11163 

11163 

. 15750 

15750 

. 15894 


. 16185 

16185 

. 16644 

16644 

. 14873 

14873 

. 15763 

15763 

.. 14979 

14979 

. 1437 

1437 

. 16108 



17124 

. 16474 


. 16491 


. 16502 



17104 

. 16650 


. 16498 

17127 


45 

























































WRIGHT AERONAUTICAL ENGINES 


Part 

Part Name T-2 

Extension, Gasoline feed pipe....—.... 16489 

Extension, Intake Ell water inlet pipe.... 

Extension, Intake Ell water outlet branch pipe. 

F 

Flange, Exhaust pipe..—..— 15909 

Flange, Oil manifold .-._______ 16384 

Flange, Oil press, pipe..... 16323 

Fiange, Propeller Hub...... 15773 

Flange, Water pipe coupling .. 

Flange, Water pipe coupling, threaded..... 

Flange, is pipe....—...;..— ---- 16386 

Flange, is pipe............ 


i mxigc, ys .... 

Flange, 1J4 O. D. Pipe............. 16354 

Flange, 124 pipe............. 


G 

Gasket, Air Horn Body............. 16481 

Gasket, Breather Tube ...:......... 15825 

Gasket, Camshaft Drive Housing ....— 15879 

Gasket, Camshaft Drive Housing ... 16373 

Gasket, Camshaft Drive Shaft Pinion Housing. 15888 

Gasket, Camshaft Housing .... 15845 

Gasket, Camshaft Housing Bearing . 15824 

Gasket, Camshaft Housing Bearing, large ... 

Gasket, Camshaft Housing Bearing, small... 

Gasket, Camshaft Housing Cover .. 15770 

Gasket, Camshaft Housing Cover, rear .. 15743 

Gasket, Camshaft Housing Cover, fr. . 15872 

Gasket, Carb......... 16503 

Gasket, Crankcase Rear Cover..... 14981 

Gasket, Cyl. flange........... 16301 

Gasket, Exh. pipe flange._________ 15910 

Gasket, Fuel pump cover...—____ 15256 

Gasket, Fuel pump mounting flange.........-. 16156 

Gasket, Generator Drive Cover..... 16366 

Gasket, Intake Manifold Tee.... 16504 

Gasket, Intake Ell.-___—...... 

Gasket, Oil press, pipe flange.... 16324 

Gasket, Oil pump cover plate...„... 14632 

Gasket, Vert, shaft housing cover. 16367 

Gasket, Water pump cover...,...... 16336 

Gasket, is pipe fiange . 16387 

Gasket, is pipe flange .. 16385 

Gasket, s/ 8 I. D..... 11559 

Gasket, M" I. D. x W O. D. x &. B-28 

Gasket, ^ x liV x is . 16347 

Gasket, 24 x 1...... 14835 

Gasket, £4 pipe flange..... 

Gasket, % x 1}4 x is . 14711 

Gasket, 1% O. D. pipe... 16355 

Gasket, 124 I. D. x 124 O. D...... 

Gasket, 1^2 x 124 x it. ..... 11440 

Gasket, 124 x 2 is x is... ....... 

Gasket, 224 sq. x 1M I. D...J... 

Gasket, 2W I. D. x 211" O. D. x &".... B-32 

Gasket, 2§1 x 4 24 x is-.. _....,_____ 

Gear, Camshaft ........ 15799 

Gear, Camshaft Drive Shaft.......... 15801 

46 


Number 

T-3 

16825 

16802 

16805 


17148 

17151 
16323 
16749 
16675 
16674 
16386 

17152 
17105 

16702 


16481 

16629 

15879 

16373 

15888 

16684 

16685 

16686 
16604 
16597 

16503 

14981 

16669 

16607 

15256 

16156 


16670 

16324 

14632 

16367 

16336 

16387 

16385 

11559 

B-28 

16347 

14835 

17106 

14711 

16355 

14922 

11440 

17134 

16633 

B-32 

17324 

16764 

17102 


























































WRIGHT AERONAUTICAL ENGINES 


Part Name 

Gear, Coupling 23 teeth.. 

Gear, Coupling 24 teeth .._.. 

Gear, Camshaft ..." ‘ 

Gear, Fuel pump internal .." 

Gear, Gun Control .” 

Gear, Mag.’ 

Gear, Mag. Drive ... 

Gear, Mag. drive shaft. 

Gear, Mag. Shaft. 

Gear, Oil pump (54 face) .* 

Gear, Oil pump (% face) .. 

Gear, Oil pump drive.. 

Gear, Oil pump drive.... 

Gear, Pump Drive.... 

Gear, Pump drive—lower ....... 

Gear, Pump Idler (Y face) . 

Gear, Pump Idler face) . 

Gear, Starting Mag. ..... 

Gear, Starting Mag. drive. 

Gear, Starting Mag. inter.. 

Gear, Vert, shaft drive ... 

Gear, Vert, shaft lower.. 

Gear, Vert, shaft upper.. 

Gland, Water pump packing... 

Guide, Fuel press, relief adj. screw_____ 

Guide, Valve, Intake.. 

Guide, Valve, Ex.. 

H 

Hose, 2.... 

Hose, y 8 " I- D. x 3" Long. 

Hose, I- D. x 2"__ 

Hose, 1" x 1A x 2 A .. 

Hose, 1" I. D. x 3"... 

Hose, \A x HI x 254. 

Hose, 1% I. D. x Hi O. D. x 3A . 

Hose, 1^' x HI x 3..... 

Housing, Camshaft L. H. 

Housing, Camshaft R. H. 

Housing, Camshaft Drive. 

Housing, Camshaft Drive Dog. 

Housing, Camshaft Drive Shaft . 

Housing, Camshaft Drive Shaft Gear Brg.... 

Housing, Camshaft Drive Shaft Pinion . 

Housing, Gun Control Gear.-... 

Housing, Starter ... 

Housing, Vert. Shaft. 

Hub, Mag. Coupling Adj.—...— 

Hub, Mag. Gear Coupling. 

Hub, Propeller .:...— 

I 

Insert, Spark Plug.-. 

Impeller, Water pump... 

J 

Jaw, Starting Crank. 

K 

Key, #3 Woodruff. 

Key, #5 Woodruff... 

Key, #8 Woodruff . 

Key, Str. A x A x HI. 


Part Number 


T-2 

T-3 

16415 


16416 


15794 

16578 

16095 

16095 

16317 

16585 

15798 

15798 

15797 

15797 

16418 


16417 


14608 

14608 

16319 

16319 

14605 

14605 

16125 

16125 

16307 

16307 

16329 

17099 

14633 

14633 

16320 

16320 

16399 

17345 


17343 


17344 

15796 

16577 

16315 

17101 

16314 

17111 

16353 

17091 

15287 

15287 

15543 

16572 

16162 

16573 

16483 

16483 

11204 

14975 

14975 


16649 

14648 


16505 


15851 

16295 

15767 

17096 

15768 

17095 

16306 

16591 

16254 

16303 

16659 


17108 

16212 

16595 

16586 

16393 

17321 

16332 

16584 


16775 


17128 

15772 

17113 

15939 

15939 

16344 

16344 


17287 

11680 

11680 

15828 


15780 

15780 

15870 

15870 


47 























































WRIGHT AERONAUTICAL ENGINES 


Part 

Part Name T-2 

L 

Lever, 2" Str...:........:............ 16446 

Link, Mag. Advance ...—...:-.....- 16624 

Link, Mag. Advance R. H..— ... 16411 

Lock, Starting Mag____ 16404 

Lock, Valve spring washer______ 14775 

Lock, Pad Starting Mag---’._ 16406 

Lock, Ring, Vert. Shaft Casing Nut..... 10487 

Lock Ring, l^r I. D.------ 

Lock Ring, 1* I. D. 16309 

Lock Ring, 1* I. D...... 15905 

Lock Ring, lfk I. D.. 

Lockwasher, x ss x .-..... 14941 

Lockwasher, fk x x / 8 x ik...:... 14940 

M 

Magneto, Splitdorf S. S. 12......_ 16205 

Magneto, Starting .:. 16414 

Manifold, Cyl. ig. wire, inside fr. .. 16476 

Manifold, Cyl. ign. wire, inside rear ...::... 16477 

Manifold, Cyl. ign. wire inside intermed. ... 

Manifold, Cyl. ign. wire outside front...... 15833 

Manifold, Cyl. ign. wire outside rear..... 15834 

Manifold, Ig. wire.......:...:.... 16419 

Manifold, Oil, front ..... 16378 

Manifold, Oil, rear .....:... 16379 

Marker, Ign. wire....... 16507 

N 

Nipple, Oil return pipe, lower . 16122 

Nipple, Oil return pipe, upper . 16139 

Nozzle, Vert, drive oil feed pipe............ 16647 

Nut, Adj. Ball end„... 16444 

Nut, Camshaft .......... 15740 

Nut, Camshaft dr. shaft casing.....____ 

Nut, Camshaft Housing cover....... 

Nut, Crankshaft Ball Bearing... 15790 

Nut, Crankshaft Gear ... 15869 

Nut, Lock, Fuel press, relief adj..... 14701 

Nut, Mag. coupling adj. screw..... 

Nut, Propeller Hub Bolt....... 15330 

Nut, Prop. Hub inner....... 15785 

Nut, Propeller Hub Outer.... 15784 

Nut, Starter Drive Shaft.......... 

Nut, #10 x 32 xiV......„. 14988 

Nut, #10 x32 L. H. x tW,....... 16492 

Nut, A x 24 x Yi ..—............—...— .. 14965 

Nut, tk x 24 x fk~........ 

Nut, 3/ x 24 P. special........ 

Nut, 3/s x 16 x 3/s . 11900 

Nut, 3/s x 24 x .,..... 14921 

Nut, * x 20 x *. 16339 

Nut, it x 16 x . 16310 

Nut, \/ 8 x 12 x 3/s ..... 15878 

Nut, Castled x / x 28 x # 2 .... .—............— 15565 

Nut, Castled tk x 24. 14712 

Nut, Castled 3/ x 24 x 14437 

Nut, Castled fk x 20............................... 14950 

Nut, Castled 54 x 20 x -h...-. ..., 15882 

Nut, Castled * x 18.....:... 15813 


48 


Number 

T-3 


16446 

16624 

16411 

16404 

14775 

16406 

10487 

17319 

16309 

15905 

16668 

14941 

14940 


16205 

17351 

17146 

16477 

17145 

15833 

15834 
16419 
16618 
16631 
16507 


16122 

16139 

16444 

15740 

16661 

16640 

17118 

16589 

14701 

16774 

15330 

17117 

17116 

17318 

14988 

16492 

14965 

16836 

16643 

11900 

14921 

16339 

16310 

15878 

15565 

14712 

14437 

14950 

15813 



























































WRIGHT AERONAUTICAL ENGINES 


Part Name 

Nut, Packing, fuel pump..... 

Nut, Packing % x 14. 

Nut, Packing % x 14. 

Nut, Packing 1J4 x 12.. 

Nut, Packing 2% x 16.. 

Nut, Packing 224 x 16 x H 

Nut, Plain %. x 28. 

Nut, Plain fs x 24. 

Nut, Plain 24 x 24.... 

Nut, Slotted #10 x 32 x is. 

Nut, Slotted 24 x 24 x . 

Nut, Slotted 54 x 20 x 54. 

Nut, Slotted rs x 18 x is . 

Nut, Slotted x 16. 


P 

Packing, 54" . 

Packing, A I. D. x % O. D. 

Packing, i x li^ x 54. 

Packing, V/& x 2j&... 

Pin, 3 3 2 x M. 

Pin, b 7 2 x 41. 

Pin, 54 x ft. 

Pin, is x 124. 

Pin, Brazing ... 

Pin, Escutcheon .057 x 54. 

Pin, Escutcheon .080 x 24. 

Pin, straight is x ft... 

Pin, straight is x 24. 

Pin, Str. s 3 2 x 1&.. 

Pin, Str. is x 1&. 

Pin, taper #4 x 154.-. 

Pin, Cam Roller... 

Pin, Piston. 

Pin, Tachometer Coupling... 

Pinion, Camshaft Drive Shaft. 

Pinion, Fuel Pump . 

Pinion, Starting Mag. 

Pipe, Air Horn Drain. 

Pipe, Camshaft Housing feed . 

Pipe, Camshaft Housing Oil Return. 

Pipe, Carb. float chamber. 

Pipe, Carb. tee water . 

Pipe, Carb. tee water outlet branch. 

Pipe, Cyl. water L. H. 

Pipe, Cyl. water R. H. 

Pipe, Cyl. water inlet tee .— 

Pipe, Cyl. water inlet, front . 

Pipe, Cyl. water inlet. 

Pipe, Cyl. water outlet . 

Pipe, Cyl. water outlet L. H. 

Pipe, Cyl. water outlet R. H. 

Pipe, Cyl. water outlet branch . 

Pipe, Cyl. water outlet front. 

Pipe, Fuel pump drain. 

Pipe, Fuel pump by pss . 

Pipe, Fuel pump outlet . 

Pipe, Gasoline feed. 

Pipe, Intake Ell water outlet branch. 
Pipe, Intake Ell, water . 


Part Number 


T-2 

T-3 

15258 

15258 

17136 

16116 

16352 

16352 

15895 

17135 

16473 

14931 

14931 

14574 

14574 

14575 

14575 

16689 

11503 

11503 

11508 

11508 

14832 

16778 

15867 

15867 

11168 

11168 

14692 

14692 

16676 

17132 

16667 

14987 

14987 

15927 

15927 

16082 

16082 

15678 

15678 

16581 

16581 

15598 

15598 

11540 

11540 

11443 

11443 

17291 

17290 

16081 

16081 

16237 

16924 

15516 

16542 

11206 

15803 

16734 

16096 

16096 

16400 

16486 

16486 

16341 

16699 

16114 

16681 

16723 

16830 

16490 

16493 

16361 

16705 

16362 

16704 

16105 

16107 


17103 

16497 


17126 

17125 

16806 

16602 

16487 

16487 

16822 

16810 

16488 

16803 

16804 
16801 


49 




























































WRIGHT AERONAUTICAL ENGINES 

Part Number 

Part Name T-2 T-3 

Pipe, Oil suction . 16130 16627 

Pipe, Oil pressure . 16322 16626 

Pipe, Vert, drive oil feed. 16368 17139 

Pipe, Water pump outlet. 16335 16703 

Piston . 16374 17100 

Piston 5.3 to 1. 17164 

Plate, Clutch inside, spline. 17313 

Plate, Clutch outside, spline. 17312 

Plate, Engine Data .-. 16516 16516 

Plate, Exhaust Port . 16518 

Plate, Hub flange name. 16257 16257 

Plate, Motor name ....-... 15019 15019 

Plate, Oil filter end. 14641 14741 

Plate, Oil pump cover... 16356 

Plug, Crankshaft (large) .-. 14734 14734 

Plug, Expansion l 1 /" . 16693 

Plug, Expansion 124" ......... 16769 

Plug, Oil and Water Pump dr. shaft...... 14631 14631 

Plug, Piston pin .....*...-. 15517 16548 

Plug, Rocker Arm shaft... 16637 

Plug, Valve stem . 16201 16201 

Plug, Water pump cover thrust. 16348 16348 . 

Plug, % Pipe . 14408 14408 

Plug, Pipe .-.. 15732 15732 

Plug, 3/ 8 Pipe ... 16458 16458 

Plug, y 2 " Pipe ..;. 16698 

Plug, y 2 " Pipe . 16044 

Plug, **-18... 11819 11819 

Plug, *4 x 16. 15761 15761 

Plug, 24" Pipe .... 11233 

Plug, 24 x 16 x 1"....... 16655 

Plug, % x 14 . 15487 15487 

Plug, 1" Pipe . 16117 16117 

Plug, 13/s x 12....-. 14792 

Plug, l 1 /" Pipe . 16340 

Plug, iy 2 x 12. 16290 

Plug, 124 x 12.. 15440 

Plunger, Oil press, relief. 11531 16645 

R 

Ratchet, Starter fixed ... 17338 

Ratchet, Starter movable .„.. 17339 

Retainer, Clutch plate, front . 17309 

Retainer Clutch plate, rear .. 17310 

Retainer, Clutch Spring ... 17307 

Retainer, Mag. gear b. b. 15876 17130 

Retainer, Starter b. b...... 16075 17322 

Rein, Starting Mag. Strap. 16408 16408 

Retainer, Thrust Bearing .... 17337 

Retainer, Vert, shaft b. b. 15880 15880 

Ring, Ignition wire, large. 11449 

Ring, Ignition wire, small. 11457 11457 

Ring, Oil filter . 15941 15941 

Ring, Piston . 15524 15524 

Ring, Prop. Hub Centering, small. 15787 17114 

Ring, Prop. Hub Centering, large. 15788 17115 

Ring, Pump Drive gear..... 17085 

Rivet, ,066"-.072" Dia. x A" Rd. Head Iron. 11161 

Rivet, Rd. Hd. /& x 24. 14221 14221 

Rivet, Rd. Hd. 24 x 3/ 8 ... 11901 


50 





























































WRIGHT AERONAUTICAL ENGINES 


Part Name 

Rivet, Rd. Hd. l A x y 2 . 

Rivet, x y 2 . 

Rivet, Flat Hd. x 

Rocker, Valve .. 

Rod, Carb. Control .. 

Rod, Mag. Advance . 

Roller, Cam .. 


S 

Screen, Oil filter ... 

Screen, Oil filter reinforcement .. 

Screen, Oil suction pump, rear ... 

Screen, Oil suction pump frame . 

Screw, Camshaft bearing . 

Screw, Camshaft Housing cover . 

Screw, Fuel press, relief adj. 

Screw, Mag. coupling adj.... 

Screw, Valve adj. 

Screw, Rd. H. #4 x 32 x 54. 

Screw, Oval Hd. #8 x 32 x 20% . 

Screw, #10 x 24 x 54—.. 

Screw, Fill Hd. #10 x 32 x . 

Screw, Fill Hd. #14 x 24 x &. 

Screw, Rd. Hd. #14 x 20 x &. 

Screw, Fill. Hd. 54 x 20 x &. 

Screw, Fill. Hd. 54 x 20 x &. 

Screw, Fill. Hd. 54 x 20 x ih . 

Screw, Lock 54 x 20 x if. 

Screw, tk x 18... 

Screw, Hdless. Set ^ x 24 x y 2 . 

Screw, tfc x 24 x A... 

Screw, Lock Y% x 16 x . 

Screw, Cap ^ x 16 x 1&... 

Screw, Cap A x 20 x 154. 

Seat, Valve . 

Shaft, Camshaft Drive . 

Shaft, Fuel pump pinion.. 

Shaft, Gun Control Drive .-. 

Shaft, Starter Drive .. 

Shaft, Starter Drive—long... 

Shaft, Starter worm .... 

Shaft, Starting Mag. gear inter. 

Shaft, Tachometer Drive .. 

Shaft, Rocker arm .. 

Shaft, Water pump .. 

Shim, Clutch plate. 

Sleeve, Camshaft bearing . 

Sleeve, Starting Crank . 

Slinger, Crankshaft oil .. 

Slinger, Mag. gear oil... 

Spacer, Crankshaft gear . 

Spacer, .792 I. D. x 1 O. D. x Yz . 

Spark Plug, B. G.—Type 1 x A. 

Spark Plug, Champion AC large porcelain. 

Spring, Camshaft dr. shaft. 

Spring, Clutch . 

Spring, Fuel press, relief valve. 

Spring, Mag. Coupling . 

Spring, Oil filter . 

Spring, Oil press, relief .. 


Part Number 


T-2 

T-3 


14218 

16337 

16337 

11983 

11983 

15545 

16890 

16482 

16678 

16443 

16654 

15537 

16574 

15189 

15189 

15190 

15190 

16327 

16327 

16328 

16328 


17120 


16639 

14700 

14700 

16773 

15541 

15541 

12053 

12053 

17347 

15881 

15881 


16691 

11820 

11820 

17150 

14833 

14833 

14837 


15472 

15472 

16363 

16363 

16086 

16086 

14889 

14889 

16677 

15610 


15421 

15421 

16239 

16239 

15940 

16438 

16302 

16662 

16719 

16719 

15885 

17306 

16087 

17316 

17346 

15744 

16599 

15542 

16568 

16345 

16345 


17311 

15821 

17098 


17286 

15791 

17147 


17131 


16588 

15877 

15877 


17272 

11985 

16666 


17308 

15259 

15259 

11896 

14642 

14642 

11530 

11530 


51 




























































WRIGHT AERONAUTICAL ENGINES 


Part Name 

Spring, Starting Mag. 

Spring, Starter Worm Lock. 

Spring, Valve, Inner .- 

Spring, Valve, Outer .. 

Spring, li x II... 

Spring, if x 1.... 

Spring, ill x 2 l /& x 2*6. 

Strap, Starting Mag. .. 

Stud, Crankshaft bearing, centre 
Stud, Crankshaft bearing, rear .. 
Stud, Crankshaft bearing, short . 
Stud, Crankshaft bearing, long . 
Stud, Camshaft Housing Cover . 

Stud, Starting Mag. 

Stud, J4 x 20 x 18 x 1 - 

Stud, x 20 x 28 x 1 .— 

Stud, x 20 x 18 x 1 fa. 

Stud, 54 x 20 x 28 x lli.—.. 

Stud, 54 x 20 x 28 x lit. 

Stud, tk x 18 x 24 x Ts . 

Stud, & x 18 x 24 x HV. 

Stud, ^ x 18 x 24 x 1^. 

Stud, A x 24 x 18 x 1&.. 

Stud, x 18 x 24 x 154. 

Stud, ^ x 24 x 18 x 154- 

Stud, ^ x 18 x 24 x 1 t%. 

Stud, ^ x 18 x 24 x ltk.. 

Stud, ^ x 24 x 18 x 144. 

Stud, ^ x 18 x 24 x It’s. 

Stud, x 24 x 18 x 154. 

Stud, A x 18 x 24 x lii- 

Stud, ^ x 24 x 18 x 1*4. 

Stud, ^ x 18 x 24 x 254. 

Stud, Dowel *4 x 16 x ItV. 

Stud, *4 x 16 x 24 x 1 & . 

Stud, *4 x 16 x 24 x 1*4. 

Stud, *4 x 16 x 24 x 1*4. 

Stud, *4 x 16 x 24 x 1*4. 

Stud, *4 x 16 x 24 x 154. 

Stud, *4 x 16 x 24 x 1&. 

Stud, *4 x 16 x 24 x HI. 

Stud, *4 x 16 x 24 x 2& . 

Stud, *4 x 16 x 24 x 254. 

Stud, *4 x 16 x 24 x 211. 

Stud, *4 x 16 x 24 x 2^2 . 

Stud, *4 x 16 x 24 x 3 tV. 

Stud, *4 x 16 x 24 x 354. 

Stud, *4 x 16 x 24 x 3*4. 

Stud, *4 x 16 x 24 x 411. 

Stud, *4 x 16 x 24 x 4 t&... 

Stud, *4 x 16 x 24 x 4*4. 

Stud, *4 x 16 x 24 x 5& . 

Stud, t 7 5 x 14 x 20 x 1*4. 

Stud, tfc x 14 x 20 x 2 . 

Support, Starting Mag. gear. 

T 

Tag, Mag., inside . 

Tag, Mag., outside . 

Tee, Carburetor ..... 


Part Number 


T-2 

T-3 

. 16405 

16405 


17327 

. 14772 

14772 

. 14771 

14771 

. 16099 

16099 

. 16079 



17352 

. 16409 

. 16449 

. 15810 

16409 


16571 


16609 


17121 

. 16407 

16407 

. 16377 

16377 

. 14960 

14960 

. 14959 

14959 

. 14961 

14961 


16636 

. 15837 

15837 

. 15372 

15372 


15422' 

. 14952 

14952 

. 16390 

16390 

. 14953 

14953 

. 15807 

15807 

. 15896 

15896 

. 14956 

14956 

. 15781 

15781 

. 14954 

14954 

.14964 

14964 

. 14955 

14955 

. 16151 

16151 

. 16716 

17047 

. 16707 

16707 

. 16375 

. 15200 

16375 

. 14957 

. 14958 

14957 


16634 

. 16376 

16376 

. 16357 

16357 


16616 


16630 

. 15815 

. 16085 

. 15912 

. 15913 

16939 

. 15911 

17330 

. 16338 

16338 

. 15783 

17342 

15783 

. 15266 

15266 

. 15267 

....... 16470 

15267 


52 




























































WRIGHT AERONAUTICAL ENGINES 


Part Name 

Tee, Water pump drain. 

Tee, H x % x y... . 

Tee, x l A x Yz . 

Terminal, Ignition wire (Rajah) 

Tube, Breather .. 

Tube, Oil Manifold centre . 

Tube, Oil Manifold front . 

Tube, Oil Manifold inter. 

Tube, Oil Manifold rear . 

Tube, Oil suction filter . 

Tube, A O. D. x 4". 

Tube, A x 511 . 

Tube, Oil A x 8Y . 

Tube, Oil A x 6§|. 


U 

Union, Brazing Str. Y% x Y\ .. 

Union, Brazing, elbow Y% x A. 

Union, Brazing, elbow V\ x Y% . 

Union* Brazing, Str. y x Yi . 

Union, Soldering, str. Y> x A.. 

Union, Soldering, Tee Y% x A x A 

V 

Valve, Check .. 

Valve, Fuel press, relief . 

Valve, Inlet and Ex. 


W 

Washer, Camshaft dr. shaft pinion. 

Washer, Mag. coupling spring.. 

Washer, Starter Drive shaft . 

Washer, Thrust Bearing .. 

Washer, Valve spring, lower .. 

Washer, Valve spring upper .. 

Washer, A x Ys x A.. 

Washer, \\ x x A. 

Washer, H x Y, x A. 

Washer, fl x x A. 

Washer, II x h x A. 

Washer, M x Y% x A. 

Washer, 41 Plain .. 

Washer, §1 x 41 x A.-.. 

Washer, if x 1 x A.. 

Washer, II x 1^ x A. 

Washer, If x 1^ x A.— 

Washer, \y 2 x 2 Y% x .175. 

Wheel, Starter worm 15 to 1. 

Worm Starter 15 to 1.. 

Y 

Yoke, End A dia. plain.. 

Yoke, End single .-. 

Yoke, End special .. 

Yoke, End A dia. threaded . 


Part Number 


T-2 

T-3 

16501 

16781 


16761 

11340 

11340 

15822 

16582 


16622 

16380 

16619 

16382 

16621 

16381 

16620 

14644 

16652 

16383 

16653 

16401 

16401 

16403 


15681 

15681 


15202 

15203 

15204 

15204 

16027 

16027 

16026 

16026 


16821 

15286 

15286 

16123 

16566 

16695 

16695 

11898 

17320 

16398 

16398 

14143 

14143 

14774 

16925 

16688 

14994 

14994 

11705 

11705 

14995 

14995 

14996 

14996 

16687 

1458 

1458 

14997 

14997 

15812 

15812 

15811 

15811 

15866 

15866 

15857 


16392 

17350 

16391 

17349 

16442 

16442 

16484 

16484 

16485 

16485 

16441 

16441 


53 

















































WRIGHT AERONAUTICAL ENGINES 


Alphabetical Assembly List 

for 

T-2 and T-3 Engines 

Assembly Name T-2 T-3 

B 

Body and Cover Plate, Oil Pump.... 12707 12936 

Body and Cover, Water Pump. 12719 12940 

C 

Camshaft, R. H.-...-... 12687 12879 

Camshaft, E. H... 12686 12880 

Camshaft Machining, R. H. 12881 

Camshaft Machining, L. H... 12882 

Carburetor and Tee, front ...... 12767 

Carburetor and Tee, rear . 12768 

Carburetor, Tee and Air Horn... 12780 

Carburetor and Ell., front ...... 12907 

Carburetor and Ell., rear .......... 12908 

Carburetor, Ell and Air Horn... 12917 

Casing and Nut, Camshaft Drive Shaft. 12808 

Connecting Rod, outer.....„... 12674 12869 

Connecting Rod, inner... 12676 12871 

Connection, Cyl. water outlet. 12811 

Coupling, Magneto .-... 12718 

Cover, Camshaft Housing R. H., rear... 12773 

Cover, Camshaft Housing E. H., rear..... 12774 

Crankcase, Stud and Brg.. 12776 12913 

Crankcase, Upper and Lower Machining. 12876 

Crankshaft ......... 12672 12867 

Crankcase and Conn. Rod . 12677 12872 

Crankcase and Plug . 12708 12894 

Cylinder, Complete R. H., front........ 12781 12918 

Cylinder, Complete R. H., rear .. 12782 12919 

Cylinder, Complete E. H., front... 12783 12919 

Cylinder, Complete L. H., rear . 12784 12918 

Cylinder, Stud and Core Plug... 12943 

E 

Elbow, Cyld. water inlet. 12608 

Ell, Intake R. H. 12905 

Ell, Intake E. H. 12906 

Engine, after valve timing. 12660 12850 

Engine, before valve timing. 12765 12920 

Engine Shipping . 12766 12924 

F 

Filter, Oil ... 12652 12652 

Flange, Propeller Hub. 12671 

G 

Gear, Fuel Pump internal. 12702 12702 

Gear and Bearing, Camshaft dr. shaft. 12699 12890 

Gear and Plug Crankshaft .... 12922 

H 

Handle Starter . 12923 

Housing, Camshaft R. H. 12692 12883 

Housing, Camshaft L. H. 12691 12884 

Housing, Camshaft Stud and Bearing, R. H. 12938 

Housing, Camshaft Stud and Bearing, E. H. 12939 

54 















































WRIGHT AERONAUTICAL ENGINES 


Assembly Name 

Housing, Camshaft Drive . 

Housing, Camshaft Drive Shaft .... 

Housing and Bushing, Camshaft Drive Shaft Pinion. 

Housing and Bushing, Starter . 

Housing, Vertical Shaft .... 

Housing, Vertical Shaft Machining . 

Hub, Propeller .... 

Hub and Dowel Propeller. 

Hub Flange Propeller . 

I 

Intake Ell and Stud. 


M 

Magneto and Gear, R. H. 

Magneto and Gear, G. H. 

Magneto and Gear Starting .... 

Manifold, Ignition wire . 

Manifold Oil .„. 

Manifold Ignition wire inside front, G. H... 

Manifold Ignition wire inside front, R. H... 

Manifold Ignition wire inside inter., G. H... 

Manifold Ignition wire inside inter., R. H... 

Manifold Ignition wire inside rear, G. H... 

Manifold Ignition wire inside rear, R. H... 

Manifold Ignition wire outside front, L. H. 

Manifold Ignition wire outside front, R. H. 

Manifold Ignition wire outside rear, G. H, 

Manifold Ignition wire outside rear, R. H 

N 

Nut and Plug, Crankshaft Gear. 

P 

Pin, Piston .... 

Pipe, Camshaft Housing Feed.. 

Pipe, Carb. float chamber _ 

Pipe, Carb. tee water inlet .-. 

Pipe, Carb. tee water outlet . 

Pipe, Cyl. water outlet, G. H. 

Pipe, Cyl. water outlet, R. H. 

Pipe, Cyl. water inlet.. 

Pipe, Gasoline feed .-. 

Pipe, Intake EH water inlet . 

Pipe, Intake Ell water outlet . 

Pipe, Oil pressure . 

Pipe, Outboard Drain . 

Pipe, Vert, shaft oil feed... 

Pipe, Water pump outlet, R. H. 

Pipe, Water pump outlet, G- H. 

Piston . 

Pump, Fuel . 

Pump, Oil ..... 

Pump, Water . 


R 

Rocker Valve . 

Rod, Carb. control .— 

Rod, Carb. control complete .. 

Rod, Mag. Advance . 

Rod, Mag. Advance complete 


T-2 

T-3 

12697 

12889 

12750 

12904 


12937 


12944 

12696 

12888 

12701 

12892 

12669 

12864 

12670 

12865 


12866 


12942 

12771 

12910 

12772 

12911 

12770 


12683 

12877 

12703 

12812 

12714 

12898 

12713 

12897 


12900 


12899 

12712 

12896 

12711 

12895 

12551 

12551 

12550 

12550 

12549 

12549 

12548 

12548 


12921 

12668 

12863 

12663 

12818 

12819 


12727 


12728 


12785 

12857 

12785 

12856 


12855 

12726 

12834 


12831 


12830 

. 12653 

12832 

. 12725 

12725 

. 12661 

12858 

. 12552 

12813 

. 12553 

12814 

. 12667 

12862 

. 12695 

12887 

. 12609 

12859 

. 12665 

12860 

. 12721 

12853 

. 12777 

12914 

. 12778 

12915 

. 12724 

12903 

. 12779 

12916 


55 























































WRIGHT AERONAUTICAL ENGINES 


Assembly Name 

s 


T-2 

T-3 

Screen, Oil suction pump. 

Shaft, Camshaft Drive . 

Shaft, Gun Control Drive . 

Shaft, Mag. Drive ... 

Shaft and Impeller Water Pump. 

Starter Hand . 

Strap, Starting Mag. 


. 12662 

. 12700 

. 12698 

. 12769 

. 12664 

. 12704 

. 12706 

12662 

12891 

12909 

12664 

12893 

T 

Tee, Carburetor, front . 

Tee, Carburetor, rear . 

Tee, Cyld. water inlet. 

Tube, Breather . 

Tube, Oil . 

Tube, Oil suction filter. 


. 12763 

. 12764 

. 12607 

. 12775 

. 12705 

. 12679 

12912 

12705 

12873 

V 




Valve, Oil press, relief. 

Valve and Plug . 


. 12666 

. 12723 

12861 

12902 


56 

















WRIGHT AERONAUTICAL ENGINES 


Notes on the Use of Service Tools 
“T” Series Engines 

The Service Tool Kit 

The Service Tool Kit is designed to be carried in the airplane. It is suf¬ 
ficient for making all minor repairs in the field and should not be removed 
from the airplane for hangar use or for work on a ship when base repair 
tools are available. Even a top overhaul is possible with this kit, but more 
work than this is not practicable and should not be attempted. 

The Crescent Adjustable Wrench WA-125 can be used for carburetor 
inspection, removal of magnetos and in several other places where several 
sizes of open end wrenches would be necessary. 

The Monkey Wrench WA-132 and the Stillson Wrench WA-136 will be 
found useful for the removal of large nuts, tank caps and in other places where 
the Crescent Wrench is too light. 

The Cutting Pliers WA-131 are intended for the removal of cotter pins, 
safety wire, etc. 

The Hammer WA-104 saves other tools from being used for that purpose. 
It is not often needed for heavy work, but it will be found very valuable for 
minor work in the field. 

The Canvas Tool Container WA-34 is made of ten-ounce brown duck with 
pockets to accommodate all tools. There are two straps on the outside for 
securing the roll. Many of the pockets are large enough and the roll is full 
enough to carry several additional tools, such as those used for work on the 
plane, if it is desired to carry them. 

Complete List of Service Tools 

This list shows a complete set of tools for any kind of service on Wright 
“T” Series engines. For a base repair shop or mother ship servicing several 
planes, the complete list would be required, while for a larger number of 
planes, possibly two sets would be necessary or at least, two or more of some 
of the tools, such as Handles for Valve Seat Cutters, Valve Clearance Gauges, 
Valve Grinding Screw Drivers, etc. 

WA- 7 is the Handle for cutting valve seats with cutters WA-117. 
(Detail #12 and #14.) 

WA-114 is properly graduated for timing all “T” series engines. 

WA-117 (Detail #12 and #14) are to be used with Handle WA-7. 

WA-115 is intended for the removal of all main crankshaft bearings. 

WA- 37 is intended primarily for valve tappet adjustment, but it will 
also be found useful for other work, such as cylinder cover 
screws and magnetos. 

WA- 10 is for removing magneto gears. Another, gear puller WA-6, 
which is part of the equipment for Wright (Hispano type) 
engines can also be supplied and will be useful for remov¬ 
ing Camshaft Gears. 

WA- 46 is for inserting new Valve Guides. 

57 


WRIGHT AERONAUTICAL ENGINES 


1. Tool Kit for T-2 and T-3: Assy. No. W. A. 33. 

Tool No. Tool Name 

WA- 34 Canvas Tool Container 

WA-122 Valve Clearance Gage—.012"—.015" 

WA- 35 Propeller Hub Nut Wrench, Inner 
WA- 36 Propeller Hub Nut Wrench—Outer 
WA-104 Hammer, Ball Pean No. 1 
WA-131 One Pair Pliers—Combination 6" 

WA-102 One Screw Driver 12" 

WA- 37 Screw Driver 4" 

WA- 24 Hook, Spanner 4"—Adjustable 
WA- 25 Spark Plug Wrench and Handle 
WA- 42 Cylinder Stud Nut Wrench 
WA-125 Crescent Adjustable Wrench 6" 

WA-132 Monkey Wrench—Flat—10" 

WA-133 Wrench, Open End 

WA- 30 Wrench, Open End $4"x re" 

WA- 41 Wrench, Tubular—For Carburetor and Oil Strainer 
WA- 23 Wrench, Water Pump Packing Nut 

WA-137 Wrench, Magneto Breaker Points, with gage for Breaker Point’s Gap 
WA-134 Cold Chisel—6" 

WA-155 Drift Pin—6" 

WA-136 Wrench—Stillson—8" 

WA- 39 Wrench, Box 1" Hex., Camshaft Dr. Sh. Nut 
WA- 40 Wrench, Box 34" Hex., Vertical Shaft Nut 
WA- 45 Valve Spring Compressor 


2. Service Tools—Common to T-2 and T-3 : 

WA-115 Bearing Puller 

WA- 7 Handle, Valve Seat Cutter 

WA-107 Spring, Valve Grinding 

WA-126 Cone and Handle for Valve Grinding 

WA- 45 Valve Spring Compressor 

WA-122 Valve Clearance Gage 

WA- 49 Gage, Valve Guide Plug 

WA- 46 Valve Guide Puller 

WA- 50 Reamer, Valve Guide 

WA- 48 Wrench, Crankshaft Thrust Bearing Nut 

WA- 35 Wrench, Propeller Hub Nut, Inner 

WA- 36 Wrench, Propeller Hub Nut, Outer 

WA- 44 Piston Ring Clamp 

WA-114 Timing Disc with Hub and Indicator 

WA- 43 Indicator, Dead Center 

WA- 10 Gear Puller 

WA- 52 Reamer, Cam Rocker Bushing 

WA- 62 Reamer, Water Pump Line 

WA- 60 Rivet Set, Cam Rocker Roller Pin 

WA- 61 Bar, Aligning Vertical Shaft Bearing 

WA- 42 Wrench, Cylinder Stud Nut 

WA- 25 Spark Plug Wrench and Handle 

WA-121 Wrench, Water Pump Bracket Nut 

WA- 32 Special Screw Driver for Crankshaft Plugs 

WA-128 Special Tool for Withdrawing Rocker Arm Shaft 

WA-118 Piston Pin Extractor 

WA- 41 Double End Wrench—One End Hex. for Oil Strainer, Other End Square 
for Carb. Strainer 


3. Service Tools—Special for T-2: 

WA-117 (Det. No. 12) Cutter, Valve Seat with Pilot, but Without Handle No. WA-7 

WA- 68 Reamer—Main Bearing 

WA- 70 Reamer, Conn. Rod Bushing—Small End 

WA- 69 Wrench, Tubular Hex., Outside Crankshaft Gear Nut 

4. Service Tools—Special for T-3 : 

WA-117 (Det. No. 14) Cutter, Valve Seat with Pilot, but Without Handle No. WA-7 

WA- 77 Reamer, Main Bearing 

WA- 74 Reamer, Conn. Rod Bushing, Small End 

WA- 76 Wrench, Tubular 134" Hex., Crankshaft Gear Nut 

58 


WRIGHT 

E-3 and E-4 

AVIATION ENGINES 


Description 

Installation 

Starting & Operation 
Dismantling Engine 

Disassembly, Overhaul & Reassembly of Units 
Numerical Parts List 
Alphabetical Parts List 

Drawings:-Assembly, Installation and Clearance 



WRIGHT AERONAUTICAL CORPORATION 
PATERSON, NEW JERSEY 
U. S. A. 


Copyright 1924 





WRIGHT AERONAUTICAL ENGINES 



60 


WRIGHT 
Model E-4 Engine 













































Instructions for Wright 
E-3 and E-4 
Engines 

It has not been thought necessary to include in this section the 
disassembly, overhaul and reassembly of separate units, as these are 
almost identical on all other Wright 8-cylinder, water-cooled engines 
(Hispano Type), which have been treated very fully in a previous 
publication—WRIGHT AIRCRAFT ENGINES, 1922—to which 
attention is directed. Some units, e. g., fuel pump and hand starter, 
which are not to be found in the early publication, will be found in 
this book under the “T” Series engines. 

Under the “T” Series engines will also be found notes on car¬ 
buretor and magneto overhaul, timing of engines and magnetos, 
installation and starting and operation of engines, all of which apply 
to the T-2, T-3, E-3 and E-4 engines. 

No assembly drawings of the E-3 engine are included, but 
complete alphabetical and numerical parts lists are given along with 
those of the E-4 engines, and if it is desired to locate an E-3 part 
on the engine, one can refer to the parts lists, find the corresponding 
part on the E-4 engine and locate this on the E-4 assembly drawings. 


61 


WRIGHT AERONAUTICAL ENGINES 


Wright E-3 and E-4 Engines 

8 Cylinder, 90° Vee, Water Cooled 

Wright E-3 and E-4 engines are very similar and the following 
description of the E-4 will serve also to explain the E-3, the major 
points in which the E-3 differs from the E-4 being mentioned in the 
description. 

Description E-4 Engine 

Cylinder Steel cylinder sleeves of the open end type are screwed 
Sleeves and shrunk into aluminum cylinder blocks. These 

Cylinders sleeves provide bearings for the pistons and through 

flanges at the lower ends, the means whereby the cyl¬ 
inder blocks are attached to the crankcase. (In the E-3 engine the 
closed end type of sleeve is used. These sleeves are shrunk into the 
cylinder block and secured by studs passing through the head of 
the sleeve and the head of the block.) 

The cylinder blocks have integrally cast water jackets and are 
enameled both inside and out as a protection against corrosion of 
the aluminum due to impurities in the cooling water or to atmospheric 
action. 

Valve Seats Valve seats are shrunk into the head of the cylinder 
block. These seats are made of aluminum bronze 
which has about the same co-efficient of expansion as the cylinder 
head and thus the possibility of the seats becoming loose is removed. 
(Valve seats in the E-3 are cut in the head of the steel sleeve.) 
Bronze spark plug bushings are screwed, shrunk and pinned into 
the cylinder walls, thus providing good mechanical and thermal con¬ 
tact with the cylinder. (The E-3 engines have steel spark plug 
bushings.) 

Valves The valves are operated directly from the camshaft, 
through flat tappets of mushroom form which are attached 
directly to the upper end of each valve stem. The valve stems are of 
large diameter and are hollow, being threaded internally to receive the 
screwed stems of the tappets. The tappets have flat heads with 
notched edges and the bottom surfaces are serrated to mate with 
washers which fit underneath and perform an important role in the 
timing of the engine. The top surface of the tappet, on which the 
cam bears, is case hardened to resist wear. Each valve washer is 
held in mesh with its tappet by means of two valve springs, one 
inside the other. 

Camshaft The camshaft is hollow for lightness and lu- 

Camshaft Drive brication, and runs in three bearings made of 

Upper Vert. Shaft lynite, a copper aluminum alloy which is 
lighter than the bronze ordinarily used for this 
purpose. (E-3 engine has bronze bearings.) These bearings are 

62 


WRIGHT AERONAUTICAL ENGINES 

screwed to the top of the cylinder block and the whole of the cam¬ 
shaft and valve mechanism is enclosed by an oil tight cover, thus 
insuring ample and efficient lubrication. 

At the end of each cylinder block there is a vertical shaft which 
drives the camshaft through bevel gearing. This is called “the 
upper vertical shaft” and has a disconnecting joint above the level 
of the crankcase so that it forms a unit with the cylinder assembly. 
Thus, cylinders, valves, camshaft and camshaft drive form a com¬ 
plete unit which is both light and compact. 

Crankcase Owing to the nature of the cylinder assem- 

Lower Vert. Shaft blies the crankcase is comparatively simple. 

There are upper and lower halves split on the 
center line of the crankshaft and the respective parts of the bearings 
are carried directly in the crankcase halves. The upper and lower 
halves are bolted together very strongly, and since each half takes 
its share of the support of the crankshaft, the crankcase as a whole 
is very rigid and light in weight. Both halves are aluminum cast¬ 
ings and the upper half has a projecting foot running the entire length 
of the case on each side, thus forming the bedplate by which the 
engine is supported. 

In bronze carriers in the upper half, at the rear end, there are 
two short shafts called “the lower vertical shafts.” Each of these 
shafts has a bevel gear at the lower inside end, meshing with a 
bevel gear on the crankshaft. The upper ends of these shafts pro¬ 
ject above the crankcase and are slotted to receive the tongues on 
the ends of the upper vertical shafts. It is thus possible to remove 
and replace cylinders without disturbing any of the camshaft gearing. 

Crankshaft The crankshaft is hollow throughout for light- 

Connecting Rods ness and for the passage of oil. It is sup¬ 
ported on four babbitt faced bronze bearings 
and one ball bearing situated at the rear end immediately in front 
of the bevel gear. The front end of the crankshaft has a taper on 
which the propeller hub is mounted and directly behind this is a ball 
thrust bearing housed in the crankcase. In the rear end of the crank¬ 
shaft is a slot which engages with a tongue on the magneto drive 
gear shaft and operates the fuel pump and the magneto drives. 

There are two connecting rods, an inner and outer, operating 
on each crankpin. The inner rod has a hollow tubular shank which 
is forked at the lower end and opens out into two flat feet to which 
is attached a special copper-tin-lead alloy bearing. The four bolts 
which secure the bearing to the rod also hold the two halves of the 
bearing together. The outside of the bearing, in the space between 
the two feet of the forked rod, is turned and forms a bearing for the 
outer connecting rod large end, this being split in the normal way 
and held together by two bolts. 


63 


WRIGHT AERONAUTICAL ENGINES 


Piston The pistons are of aluminum alloy and are simple 

Piston Pins in design. There is no ribbing beneath the heads, 

the section being amply strong without and heavy 

enough to dissipate heat from the center of the head, rapidly. Each 
piston has three compression rings near the head and one scraper 
ring in the skirt. 

The piston pins are free to turn in both the piston pin bosses 
and the small ends of the connecting rods. Bronze plugs are driven 
into the ends of the pins to remove the possibility of scratching the 
walls of the cylinders. 

Pump Drive In the lower half of the crankcase, running in a 
bronze bearing, is a vertically located shaft with a 
bevel pinion at its upper end. This bevel pinion meshes with the 
bevel on the crankshaft and drives the oil and water pumps through 
a tongue on the shaft. In order to minimize weight all the inter¬ 
mediate shafts run at a speed one-fifth greater than that of the 
crankshaft. The lubrication system is operated by two suction 
pumps and a pressure pump in a similar manner to that described 
under the “T” series description. 

Magneto Drive There are two magnetos, each an eight-cylinder 
Magneto Coupling instrument. One is wired to all spark plugs 
located on the outside of the cylinders and 
the other to all spark plugs situated in the Vee between the blocks. 
The magnetos are mounted crosswise with their distributor ends 
tilted upwards and toward the outside of the engine. This method 
of mounting makes the breaker boxes very accessible and it also 
permits the engine bearers to be continued straight back as far as 
the airplane designer may desire. 

Both magnetos with their drive shaft and gears are made up 
in a unit and are demountable as such. The rear end of the crank¬ 
case has a circular, flanged opening, provided with a ring of studs 
and the aluminum magneto bracket is attached thereto. There are 
three magneto gears. Located centrally in the bracket is a short 
shaft with a tongue on the front end which engages with the slot 
in the end of the crankshaft and at the other end, housed in the 
bracket, is a ball bearing which supports the shaft. A bevel pinion 
on this shaft meshes with the two magneto driving gears, one on 
each side, these also being mounted on ball bearings. 

The magnetos themselves are attached to the bracket by cap 
screws and a very simple and effective form of coupling is used. 
On the end of the armature shaft is a small spur gear with 23 teeth 
and on the bevel pinion shaft is a similar gear with 24 teeth. To 
connect the armature and pinion shafts there is a sleeve, furnished 
at each end with an internal gear. The internal gear at the arma- 

64 


WRIGHT AERONAUTICAL ENGINES 

ture end has 23 teeth. The other end has an internal gear with 24 
teeth. When this sleeve is located symmetrically, the internal gears 
mesh with their corresponding spur gears and so give a positive drive 
connection, which has ample freedom to allow for any slight inaccur¬ 
acies in alignment that may exist. A spring is used to keep the 
sleeve in its driving position, but by removing a cotter pin the sleeve 
is freed, can be slid out of mesh and the magneto can then be timed 
with great accuracy, for by moving forward one of the 23 teeth 
and simultaneously moving backward one of the 24 teeth the effect 
of an advance of seven-tenths of a degree is obtained. A magneto 
can be removed without affecting the coupling, since the gear simply 
slides out when the cap screws which hold the magneto to the 
bracket are removed. 

It should be noted that due to the bevel drive, both magnetos 
rotate in the same direction and therefore are identical. 

Gasoline Supply Gasoline is supplied by means of a Wright 
Fuel Pump Viking Fuel Pump, to a Stromberg NA-U5 

carburetor (NA-D4 on the E-3 engine), which 
is located in the vee of the engine. The fuel pump is attached to 
the bottom of the magneto bracket, taking its drive from a short 
vertical shaft and another bevel gear meshing with the main magneto 
driving gear. The construction and operation of the pump is ex¬ 
plained in the description of the “T” series engine. 

Dismantling E-3 and E-4 Engines 

1. DRAW OFF PROPELLER HUB ASSEMBLY. 

This should be done in the following manner: 

a. Remove the locking device. 

b. Loosen the outer nut and back it off 5 turns. 

c. Loosen the inner nut and back it off 3 turns. 

d. Hold the inner nut firm and screw up on the outer nut 
until the hub breaks away from the shaft. 

e. Back off inner nut and remove hub. 

Note:—I t is important that the propeller hub be removed according 
to the above procedure in order to prevent injury to the 
threads on the crankshaft. 

2. Disconnect carburetor gas and water connections, loosen 4 nuts 

on manifold and LIFT OFF CARBURETOR AND MANI¬ 
FOLD TEE ASSEMBLY TOGETHER WITH CONNEC¬ 
TIONS and HOSE. 

3. Take off nuts and REMOVE INLET MANIFOLDS RIGHT 

AND LEFT HAND. 


65 


WRIGHT AERONAUTICAL ENGINES 

4. Disconnect all ignition wires from spark plugs, loosen ignition 
wire manifolds from cylinder walls, disconnect magneto ad¬ 
vance clamps from tubes, take out spark plugs and LIFT OFF 
TWO DISTRIBUTOR COVERS and MAGNETO AD¬ 
VANCE ASSEMBLIES. 

5. REMOVE HAND STARTER. 

6. Take out 2 cotter pins from magneto couplings, cut wire from 
magneto hold down screws, remove screws and TAKE OFF 
2 MAGNETO and GEAR ASSEMBLIES WITH COUP¬ 
LINGS and IGNITION WIRES. 

7. Take off nuts and set screws and DRAW OFF MAGNETO 
SUPPORT ASSEMBLY and FUEL PUMP. 

8. REMOVE TACHOMETER SHAFT. 

9. Take out screws and REMOVE CYLINDER COVERS 
RIGHT and LEFT HAND. 

10. Take off nuts on camshaft bearings and LIFT OUT 2 CAM¬ 
SHAFT and BEARING ASSEMBLIES. 

11. REMOVE CRANKCASE BREATHER ASSEMBLY. 

12. Take off nuts and REMOVE 2 GUN CONTROL ASSEM¬ 
BLIES. 

13. Loosen vertical shaft housing packing nuts, remove nuts from 
interrupter drive gear housings and slip up housings on ver¬ 
tical shaft casing. Disconnect water pipes and remove them. 
Loosen oil pipe nipple packing nut. Remove cylinder hold 
down nuts and LIFT OFF ONE CYLINDER ASSEMBLY 
WITH OIL PIPE ATTACHED and REMOVE PISTONS 
FROM EXPOSED CONNECTING RODS. 

Note: —Care must be taken that in removing the cylinder block, the 
pistons do not come in contact with the cylinder studs; rubber 
tubing should be placed over these studs or they should be 
covered with rag to remove the possibility of marring the 
pistons. 

It is important that the pistons be removed from the ex¬ 
posed connecting rods before the other block is taken off, as 
there is a danger of breaking the piston rings in the exposed 
pistons when turning the motor over. 

REMOVE OTHER CYLINDER BLOCK IN THE SAME 
MANNER. 

14. Invert crankcase on stand and REMOVE OIL and WATER 

PUMP assemblies. 


66 


WRIGHT AERONAUTICAL ENGINES 

15. REMOVE COTTER PINS and NUTS FROM REAR 
MAIN BEARING STUDS (INSIDE THE CRANKCASE). 
Remove all flange bolts and nuts, reinvert case on stand, take 
off remaining main bearing nuts, turn crankshaft till webs are 
horizontal and LIFT OFF UPPER HALF CRANKCASE. 

16. LIFT OUT CRANKSHAFT and CONNECTING ROD 
ASSEMBLY and REMOVE BEARINGS. 

17. REMOVE OIL STRAINER, OIL PRESSURE RELIEF 
VALVE and OIL MANIFOLD PLUG FROM LOWER 
HALF CRANKCASE. 

18. REMOVE CONNECTING RODS FROM CRANKSHAFT, 
BEING SURE TO KEEP BOLTS and NUTS WITH RODS 
FROM WHICH THEY WERE TAKEN. 

19. BLOW OUT ALL OIL LEADS IN BOTH UPPER and 
LOWER HALVES OF CRANKCASE WITH A POWER¬ 
FUL KEROSENE SQUIRT. 

Reassembly E-3 and E-4 Engines 

1 . assemble connecting rods on crankshaft. 

2 . REPLACE OIL MANIFOLD PLUG, OIL PRESSURE 
RELIEF VALVE and OIL STRAINER IN LOWER HALF 
CRANKCASE. 

3. Put main bearings in upper half crankcase and PUT IN 
CRANKSHAFT and CONNECTING ROD ASSEMBLY. 

4. Put main bearings in lower half, drop oil and water pump 
drive gear into place in bearing and ASSEMBLE TWO 
HALVES OF CRANKCASE TOGETHER, using a little 
shellac on the joint. 

5. PUT NUTS ON REAR BEARING STUDS and COTTER 
PIN THEM. 

It is important that these nuts and cotter pins be put on at this 
stage of the assembly, for they cannot by reached after the oil 
pump is in place. 

6 . ATTACH OIL and WATER PUMP ASSEMBLY and invert 
crankcase on stand. 

7. Assemble 4 pistons to connecting rods and PUT ON ONE 
CYLINDER ASSEMBLY. Put on other assembly in same 
manner. 

8 . PUT ON WATER PIPE CONNECTIONS and connect ver¬ 
tical shaft housings. 

9. PUT ON GUN CONTROL ASSEMBLIES. 


67 


WRIGHT AERONAUTICAL ENGINES 

10. ATTACH CRANKCASE BREATHER ASSEMBLY. 

11. REPLACE CAMSHAFT and BEARING ASSEMBLIES. 

12. PUT ON and SECURE MAGNETO SUPPORT AS¬ 
SEMBLY and FUEL PUMP. 

13. REPLACE MAGNETO and GEAR ASSEMBLIES, WITH 
COUPLINGS and IGNITION WIRES, and put in spark 
plugs on inside banks of cylinders. 

14. ATTACH DISTRIBUTOR COVERS and MAGNETO AD¬ 
VANCE ASSEMBLIES TO MAGNETOS, fix ignition wire 
manifolds to cylinder walls (inside) and connect wires to spark 
plugs. 

15. Put on inlet manifolds and ASSEMBLE CARBURETOR 
and MANIFOLD TEE ASSEMBLY. 

16. SET VALVE CLEARANCES and TIME ENGINE. 

Be sure to replace cotter pin in vertical shaft nut after timing. 

17. TIME MAGNETOS, making sure that couplings are secured 
by cotter pins after the timing. 

18. PUT ON CYLINDER COVERS and TACHOMETER 
SHAFT. 

19. SCREW IN OUTSIDE SPARK PLUGS and connect ignition 
wires to terminals. 

20. PUT ON PROPELLER HUB. 


68 


WRIGHT AERONAUTICAL ENGINES 


Numerical Parts List 

for 

E-3 and E-4 Engines 

J* art f Quan. per Engine 

Number . Part Name E-3 E-4 

B-27 Gasket, J4" I. D. 4 2 

B-28 Gasket, 44" I. D. 13 20 

B-32 Gasket, 244" I. D." "" i i 

B-33 Gasket, 1 " I. D. 1 l 

B-63 Cotterpin, A" x 1 %" . 2 2 

B-64 Cotterpin, A" x 1 ". 20 30 

B-93 Nut, 6 m/fn x 1 P.. 30 28 

T-129 Key, Camshaft Gear . 2 2 

T-210 Stud, 8 m/m x 1.25 P. x 1A" lg. 16 28 

594- P Ring, Piston L. H. 8 8 

595- P Ring, Piston R. H. 16 16 

596- P Ring, Piston Oil ._. 8 8 

656 Cotterpin . 4 4 

657 Cotterpin, &" dia. 10 10 

B-574 Screw, Lock 6 m/mi x 42" lg. 1 1 

B-759 Gasket, Breather Tube . 1 1 

B-760 Gasket, Oil Manifold Plug. 1 1 

B-767 Dowel, .315" Dia. x 54". 8 8 

B-768 Dowel, .236" Dia. x 54". 16 16 

B-781 Screw, 5 m/m x .75 x A" C’ts’k Hd. Mach. 10 10 

B-784 Stud, 6 m/m x 1 P. x 1A" long. 10 4 

B-785 Gasket, Intake Pipe and Tee. 2 

B-786 Gasket, Carburetor . 1 

B-788 Gasket, Intake Pipe . 4 4 

B-789 Lock washer for 6 m/m Dia. 24 28 

B-790 Lockwasher for 8 m/m Dia. 73 61 

B-794 Stud, 6 m/m x 1 P. x §2" long. 8 16 

B-803 Screw, 5 m/m x .75 P. x A" Fill. Hd. Mach. 3 3 

B-904 Ball Bearing #904. 1 

T-948 Stud, 8 m/m x 1.25 P. x 3A" long.;. 12 12 

T-949 Stud, 8 m/m x 1.25 P. x 142" long. 8 

T-950 Bushing, Cylinder Cover Screw. 20 20 

T-952 Screw, Camshaft Center Bearing. 8 8 

T-954 Stud, 8 m/m x 1.25 P. x 144" long. 10 10 

T-955 Stud, Cylinder . 72 72 

T-956 Stud, Crankshaft Center Brg. 8 8 

T-957 Stud, Crankshaft Rear Brg. 2 2 

T-958 Stud, Crankshaft Front Brg. 2 2 

T-960 Screw, Water Pump Cover. 6 6 

T-961 Stud, 8 m/m x 1.25 P. x 1A" long. 36 24 

T-970 Screw, Main Bearing Dowel. 4 4 

T-982 Gasket, Water Pump Cover. 1 1 

T-989 Nipple, Oil Pipe.-. 2 2 

T-990 Nut Packing, Oil Pipe Nipple. 2 2 

T-1032 Gasket, Cylinder Cover . 2 2 

T-1092 Gasket, Water Pipe . 16 8 

1426 Gasket, Magneto Support . 1 1 

1437 Dowel, A" Dia. x 54" Dowel. 4 4 

1439 Gasket, Cylinder Base . 2 2 

1441 Stud, 10 m/m x 1.5 P. x 1A" long.:. 3 

1442 Stud, 10 m/m x 1.5 P. x 1 A" long. 3 3 

1443 Nut, 10 m/m x 1.5 P. x 54" slotted. 2 2 

1444 Nut, Plain 10 m/m x 1.5 P. 6 3 

1458 Washer, 41" I. D. Plain. 34 17 

69 
























































WRIGHT AERONAUTICAL ENGINES 


Part 

Number 

6203 

6204 
6208 
6408 
9619 
9622 
9635 
9638 
9667 
9930 

9939 

9941 

9959 

9960 

9967 

9968 
10357 
10376 
10378 
10428 
10432 
10434 

10443 

10444 
10474 
10487 
10510 

*10540 

10561 

10637 

10685 

10693 

11003 

11008 

11009 

11012 

11137 

11160 

11161 

11163 

*11164 

11168 

11169 

*11171 

11188 

11197 

11198 
11204 
11206 
11207 

*11214 

11233 

11245 

*11272 

11302 

11303 

11304 

11305 


Part Name 


Quan. per Engine 
E-3 E-4 


Ball Bearing #6203 . 4 

Ball Bearing H. B. #6204. 4 

Ball Bearing H. B. #6208. 1 

Ball Bearing H. B. #6408. 1 

Bearing, Camshaft—Front . 2 

Bearing, Camshaft—Rear . 2 

Bushing, Connecting Rod. 8 

Gear, Crankshaft ... 1 

Plug, 38 m/m x 1.5 P. 30 

Taperpin, Magneto Drive Pinion, Vertical Shaft 

Gear . 2 

Washer, Camshaft Front Brg. 2 

Gear, Vertical Shaft—Lower. 2 

Tube, Breather.-. 1 

Cap, Breather .-. 1 

Bearing, Crankshaft Intermediate—Lower. 3 

Bearing, Crankshaft Intermediate—Upper..... 3 

Nut, Vertical Shaft Hous. Packing. 2 

Shaft, Water Pump . 1 

Bushing, Water Pump . 1 

Tee, Inlet Manifold . 1 

Nut Packing, Inlet Pipe. 1 

Nozzle, Water . 1 

Manifold, Inlet—L. H. 1 

Manifold, Inlet—R. H. 1 

Gear, Camshaft . 2 

Ring, Vert. Shaft Casing Nut Lock. 2 

Washer, Crankshaft Ball Bearing. 1 

Flange, Propeller Hub. 1 

Coupling, Tachometer . 1 

Nut, Crankshaft Centering Lock. 1 

Gasket, Vert. Shaft Gear Cover. 2 

Lock, Crankshaft Cent. Nut. 1 

Nut, Propeller Thrust Brg. 1 

Bearing, Crankshaft Front—Upper. 1 

Bearing, Crankshaft Front—Lower. 1 

Lock, Thrust Bearing Nut .-... 1 

Plate, Water Hole . 10 

Tube, Wire Manifold End. 2 

Rivet, Round Head . 8 

Dowel, Connecting Rod Bushing. 8 

Tube, Oil Manifold. 3 

Packing, Water Pump . 9" 

Cotterpin . 9 

Sleeve, Oil Manifold .. 1 

Packing, Stuffing Box . 6' 

Flange, Water Pipe . 4 

Button, Water Pump Thrust. 2 

Hose, Manifold Water Pipe Coupling. 2 

Pin, Tachometer Coupling . 1 

Cotterpin . 2 

Plate, Engine License . 1 

Plug, 24" Pipe . 1 

Clamp, for 24" I. D. Hose. 8 

Cover, Engine . 1 

Nut, Slotted 8 m/m x 1 25 P. 16 

Nut, Plain 8 m/fn x 1.25 P. x . 85 

Nut, Plain 8 m/m x 1.25 P. x W . 16 

Nut, Plain 10 m/m x 1.5 P. x if". 72 


4 

4 

3 

1 


8 

1 

1 

2 

2 

2 

1 

1 

3 

3 

2 

1 

1 


2 

2 

1 

1 

1 

1 

2 

1 

1 

1 

1 

1 

2 

2 

8 

8 

3 

9" 

11 

1 

6 ' 

4 
2 
2 
1 
2 
1 
1 
8 
1 

26 

73 

72 


* Not to be ordered as spares. 


70 




























































WRIGHT AERONAUTICAL ENGINES 

£ art . ^ Quan. per Engine 

Number Part Name E-3 E-4 

11313 Plug, 12 m/fri x 1.25 P. 2 

11322 Rivet, Flat Head . 4 4 

11323 Plug, Crankshaft 25 m/m x i.5 P.” 8 8 

11324 Plug, Crankshaft—Small . 4 4 

11340 Terminal, Ignition Wire . 16 16 

11342 Magneto, Starting . 1 

11348 Cotterpin . 2 2 

11366 Screw, Vert. Shaft Brg. Dowel. 2 2 

*11373 Bearing, (Camshaft Center._... 2 

*11374 Cap, Camshaft Center Brg. 2 

11386 Stud, 6 m/m x L25 x Y% . 4 

11397 Ring, Propeller Hub Nut Lock. 1 1 

11406 Spring, Valve (Inner). 16 16 

11407 Spring, Valve (Outer). 16 16 

11440 Gasket, 1H" I. D. 33 2 

11442 Strap, Ignition Manifold . 2 

11443 Pin, iV' Dia. x Y%" lg. straight. 10 12 

11445 Cotterpin, tV' x 1 " long. 3 3 

11449 Ring, Ignition wire—large. 8 8 

11468 Shaft, Tachometer Drive . 1 1 

11469 Bushing, Tachometer Drive Shaft..... 1 

11503 Nut, Yz" x 24 x y 2 " slotted. 16 

11513 Washer, Valve Spring—Lower. 16 16 

11517 Bolt, 8 m/m x 1.25 P. x IePs". 6 6 

11527 Body, Oil Pressure Relief. 1 1 

11530 Spring, Oil Pressure Relief. 1 1 

11531 Plunger, Oil Pressure Relief.. 1 1 

11559 Gasket, YY I. DL. 1 1 

11570 Marker, Ignition Wire . 2 sets 

11574 Gasket, Spark Plug Bushing. 16 

11626 Key, Propeller Hub . 1 . 1 1 

11630 Wire, Dia. .030" to .045". 16' 16' 

*11658 Impeller, Water Pump . 1 1 

*11673 Connecting Rod, Outer . 4 4 

*11674 Connecting Rod, Inner . 4 4 

11677 Screw, Cylinder Cover . 22 22 

11680 Key, #3 Woodruff. 5 7 

11682 Nut, Water Pump Gland. 1 1 

11683 Bolt, Connecting Rod—Outer . 8 8 

11686 Valve Guide, Admission . 8 

11687 Valve Guide, Exhaust . 8 

11688 Nut, Connecting Rod Outer Bolt. 8 8 

11689 Bolt, Connecting Rod—Inner. 16 16 

11705 Washer, £i" I. D. x Yz O. D. x *". 3 13 

11707 Cotterpin, A" dia. x Ya" . 32 16 

11722 Valve, Oil press, relief Assembly. 1 1 

11730 Washer, Vert. Shaft Thrust. 2 2 

11757 Gear, Pump Idler J4" Face.;. 1 1 

11775 Screw, Oil Pump Gear Brg. Set. 1 1 

11778 Bushing, Spark Plug.-. 16 

11796 Cock, %" Spring Key. 1 2 

11812 Spacer, Thrust Bearing . 1 

11819 Plug, Yz x 18 P. 5 5 

11820 Screw, 14 x 24 x tV' Fil. Hd. 2 2 

11844 Stud, 8 m/m x 1.25 P. x HI" long. 6 6 

11851 Stud, 6 m/m x 1 P. x 1§4" long. 4 4 

*11865 Crankshaft .,. 1 

11868 Gasket, W f I. D. 2 2 

11879 Stud, 8 m/m x 1.25 P. x 1H" long. 13 13 

* Not to be ordered as spares. 


71 





























































WRIGHT AERONAUTICAL ENGINES 

Part Quan. per Engine 

Number Part Name E-3 E-4 

11880 Bearing, Thrust . 1 1 

11893 Cap, Oil Pressure Relief. 1 1 

11896 Spring, Magneto Coupling. 2 2 

*11897 Coupling, Magneto ... 2 2 

11898 Washer, Magneto Coupling Spring. 2 2 

11899 Nut, 12 m/m x 1.25 P. x ft" slotted. 2 2 

11900 Nut, #" x 16 x . 2 

11901 Rivet, Round Head . 24 24 

*11903 Gear, Mag. Coupling (23 teeth) Int. 2 

*11904 Gear, Mag. Coupling (24 teeth) Int. 2 

11906 Gear, Magneto Shaft (23 teeth). 2 

11908 Carburetor (NA-D4) Stromberg . 1 

11915 Bolt, Propeller Hub. 8 8 

11917 Bushing, Water Pump Drive Shaft. 1 1 

11937 Bushing, Cyl. Cover Screw Dowel. 2 2 

11945 Cotterpin . 2 2 

11946 Spacer, Interrupter Ball Bearing. 2 2 

11947 Gear, Interrupter Drive . 2 2 

11948 Housing, Interrupter Drive Gear. 2 2 

11950 Pinion, Interrupter Drive . 2 2 

11951 Shaft, Interrupter Gear . 2 2 

11960 Gasket, Interrupter Gr. Shaft Housing... 2 2 

11962 Stud, 8 m/m x 1.25 P. x 1*". 2 2 

11971 Stud, 8 m/m x 1.25 P. x %" . 8 

11972 Valve Tappet . 16 16 

11973 Cup, Priming .... 4 4 

*11981 Manifold, Cyl. Ignition Wire. 4 

11983 Rivet, *" Dia. FI. Hd. 54" long. 16 16 

11985 Plug, Spark (Champion AC large porcelain). 16 16 

*11993 Cover, Packing Box Seal.. 2 2 

12053 Screw, Rd. Hd. brass #4-32P. 8 8 

14023 Stud, Interrupter Brace. 2 2 

14024 Spring, Interrupter Brace . 2 2 

14025 Washer, fi" I. D. x 34" O. D. x *". 2 2 

14058 Washer, Plain W I. D. 4 4 

14059 Stud, 8 m/m x 1.25 P. x 1&" lg. 2 2 

14060 Stud, 8 m/m x 1.25 P. x US" lg. 2 2 

*14083 Strainer, Breather Tube Oil. 1 1 

*14084 Ring, Breather Tube Oil Strainer. 1 1 

14085 Spring, Breather Tube Oil Strainer. 1 1 

*14098 Dowel, Propeller Hub ...... 1 1 

14105 Nut, Propeller Hub—Outer. 1 1 

14106 Nut, Propeller Hub—Inner. 1 1 

*14126 Plug, Wood for 5/ 8 " I. D. Hose. 2 2 

14191 Retainer, Interrupter Gr. Shaft B. B. 2 2 

14207 Housing, Interrupter Gear Shaft. 2 2 

14221 Rivet, Rd. Hd. ft x 54. 6 

14313 Nut, 14 m/m x 1.5 P. x tk" slotted. 2 2 

14314 Gear, Magneto Drive Shaft. 2 

14408 Plug, Pipe y 8 " (Std.). 1 2 

14432 Pinion, Magneto . 2 2 

14433 Nut, Magneto Pinion B. B. 2 2 

14435 Spacer, Magneto Pinion B. B. 2 2 

14455 Cover, Cylinder L. H... 1 

14457 Cover, Cylinder R. H.... 1 

*14460 Hub, Propeller . 1 1 

14461 Nut, Propeller Hub Bolt Plain . 1 1 

14462 Nut, Propeller Hub Bolt Special. 7 7 

*14484 Manifold, Ignition Wire L. H. 1 1 

* Not to be ordered as spares. 


72 





























































WRIGHT AERONAUTICAL ENGINES 


Part 

Number Part Name 

14575 Nut, x 24 P. Plain... 

*14602 Crankcase, Upper Half. 

*14603 Frame, Oil Suction Pump Screen. 

*14604 Screen, Oil Suction Pump—Rear. 

14605 Gear, Oil Pump Drive. 

14606 Shaft, Oil & Water Pump Drive. 

14607 Gear, Oil Pressure Pump. 

14608 Gear, Oil Suction Pump. 

*14609 Plate, Oil Pump Cover. 

*14610 Body, Oil Pump. 

14629 Gear, Oil & Water Pump Drive. 

14630 Bearing, Oil & Water Pump Drive Gear. 

14631 Plug, Oil & Water Pump Drive Shaft. 

14632 Gasket, Oil Pump Cover Plate. 

14633 Gear, Pump Idler s/%" Face. 

14634 Washer, Plain y 2 " I. D. x U" O. D. 

14635 Nut, Castled 12 m/m x 1.75 P. 

*14636 Body, Water Pump. 

*14638 Screen, Oil Filter—Fine Mesh. 

*14639 Screen, Oil Filter—Coarse Mesh. 

*14640 Ring, Oil Filter. 

*14641 Plate, Oil Filter End. 

14642 Spring, Oil Filter.. 

14643 Cover, Oil Filter. 

*14646 Pipe, Cylinder Water Inlet R. H.. 

*14647 Pipe, Cylinder Water Inlet L. H. 

14648 Hose, Water Pump Outlet. 

14649 Clamp, Hose for 1" I. D. Hose. 

*14650 Support, Magneto. 

14651 Shaft, Magneto Drive Gear. 

14652 Nut, Magneto Drive Gear B. B. Ret. 

14653 Lock, Mag. Dr. Gear B. B. Ret. Nut. 

14655 Gasket, Magneto Support Cover. 

14656 Spring, Mag. Pinion B. B. Nut Lock. 

14665 Gear, Camshaft. 

14668 Gear, Vert. Shaft—Upper. 

14669 Shaft, Vertical. 

14670 Bearing, Vertical Shaft—Upper. 

14671 Dog, Vertical Shaft. 

*14672 Flange, Oil Pipe R. H. 

*14673 Flange, Oil Pipe L. H... 

*14674 Pipe, Camshaft Oil. 

*14675 Pipe, Cam Housing Oil Return R. H. 

*14676 Pipe, Cam Housing Oil Return, L. H. 

14678 Nipple, Oil Return Pipe.... 

14679 Nut, Packing Oil Return Pipe. 

*14680 Nut, Vertical Shaft Casing. 

14683 Gasket, Oil Pipe Flange. 

*14684 Pipe, Water Pump Outlet. 

*14685 Casing, Vertical Shaft. 

14688 Flange, Exhaust Pipe.. 

14689 Gasket, Exhaust Pipe Flange. 

*14690 Plate, Exhaust Port. 

14692 Packing, Fuel Pump. 

14696 Plug, Piston Pin....-. 

14700 Screw, Fuel Pressure Relief Adj. 

14701 Nut, Fuel Pressure Relief Adj. Lock- 

14702 Cover, Fuel Pressure Relief. 

14711 Gasket, %” I. D. x I'A" O. D. x *"., 

* Not to be ordered as spares. 

73 


Quan. per Engine 
E-3 E-4 


1 

1 

1 

3 
1 
1 
2 
1 
1 
1 
1 
2 
1 
2 
2 
2 
1 
1 
1 
1 
1 
1 
1 
1 
1 
2 

4 
1 
1 
1 
1 
1 
1 
2 
2 
2 
2 
4 
1 
1 
2 
1 
1 
2 
2 
2 
2 
2 
2 
8 
8 
8 
1 

16 

1 

1 

1 

1 


5 

1 

1 

1 

3 

1 

1 

2 

1 

1 

1 

2 

1 

2 

2 

2 

1 

1 

1 

1 

1 

1 

1 


2 

4 

1 

1 

1 

1 

1 

1 

2 

2 

4 


2 

2 

2 


1 

1 

1 

1 

1 





























































Part 

Number 

14712 

*14726 

14873 

14930 

14931 
14941 
14960 
14981 
14994 
14996 

♦15019 

15078 

15087 

15252 

15253 

15255 

15256 

15258 

15259 

15260 

15261 
15264 

*15265 

15266 

15267 
15272 

*15275 

15282 

15283 

15286 

15287 
15292 
15294 

15304 

15305 
15307 
15421 

*15461 

15565 

15598 

15600 

15832 

15881 

15939 

15990 

*15991 

*15992 

16002 

16005 

16011 

16013 

16020 

16044 

16075 

16076 

16079 

16080 
16081 
16082 

* Not 


WRIGHT AERONAUTICAL ENGINES 

Quan. per Engine 


Part Name E-3 E-4 

Nut, Castled is" x 24 P. 3 3 

Manifold, Ignition Wire R. li. 1 

Dowel, 4s x Yz ._. 2 

Bolt, x 28 P. x W' long. 4 

Nut, ^ x 28 P. Plain. 8 

Ixjckwasher, ^ x ^2 x e 3 ?. 4 

Stud, x 20 x 28 P. (Std.) x 1". 4 

Gasket, Crankcase Rear Cover. 2 

Washer, W" x y 2 " x is" . 4 

Washer, It x fl x ik . 5 

Plate, Engine Name. 1 1 

Clip Wire Manifold. 8 

Cover, Magneto Support. 1 

Gear, Pump Drive. 1 1 

Bushing, Fuel Pump Gear. 1 1 

Shaft, Fuel Pump Pinion. 1 

Gasket, HI" Dia. x 2}4" sq. 2 2 

Nut, Fuel Pump Packing. 1 

Spring, Fuel Pressure Relief Valve. 1 1 

Pin, Piston.. 8 

Nut, 10 m/m x 1.5 P. x If". 10 8 

Tee, Water Pump Drain._. 1 1 

Pipe, Manifold Tee Outlet Y% O. D. 1 1 

Tag, Magneto (Inside). 1 1 

Tag, Magneto (Outside). 1 1 

Stud, 8 m/m x 1.25 P. x HI". 4 4 

Plate, Hub Flange Name. 1 1 

Cover, Water Pump. 1 1 

Clip, Ys" O. D. Pipe... 2 2 

Valve, Fuel Pressure Relief. 1 1 

Guide, Fuel Pressure Relief Adj. Screw. 1 1 

Adapter, 38 m/in x %" Pipe Thd. 2 

Connection, Yz" I- D- Hose. 4 4 

Plug, 18 m/m x 1.5 P. 8 4 

Adapter, 18 m/m x %" Pipe Thd. 2 

Connection, Ya" I- D. Hose. 2 2 

Screw, YY x 16 P. x lsV' Cap. 8 8 

Cap, Oil Manifold. 1 1 

Nut, x 28 P. x 52 Castled. 2 

Pin, .080" Dia. x YY Escutcheon. 3 3 

Nut, Camshaft. 2 2 

Clip, Wire Manifold. 8 

Screw, #10 x 24 P. x y 2 " . 2 

Insert, Spark Plug. 16 

Bearing, Camshaft Front. 2 

Bearing, Camshaft centre. 2 

Cap, Camshaft centre brg. 2 

Screw, 10 m/m x 1.5 P. x II" Cap. 2 2 

Bushing, Magneto Support Screw. 2 2 

Bearing, Vert. Shaft—Upper. 2 

Bearing, Oil & Water Pump Dr. Gear. 1 

Magneto R. H. (Splitdorf SS-8). 2 2 

Plug, y 2 " Pipe. 2 2 

Retainer, Starter Ball Bearing. 1 

Cover, Starter. 1 

Spring, || x 1" long.. 1 

Ball, is" dia... 1 

Pin #4 x 1J4 Taper. 2 

Pin, is dia. x \Y" . 2 

to be ordered as spares 


74 





























































WRIGHT AERONAUTICAL ENGINES 


Part 

Number Part Name 

16084 Collar, Starter Worm. 

16086 Screw, x 18 P. 

16088 Shaft, Starter Drive (Short).. 

16089 Adapter, Starter. 

16090 Screw, 10 m/m 1.5 P. x 1H C’ts’k—Head. 

16091 Stud, Starter Housing. 

16092 Connection, 24" I. D. Hose. 

16093 Body, Fuel Pump.. 

16094 Cover, Fuel Pump.... 

16095 Gear, Fuel Pump Internal. 

16096 Pinion, Fuel Pump. 

16097 Connection, 54" I. D. Hose. 

16098 Elbow, Connection J4" I. D. Hose. 

16099 Spring, H" O. D. x 1". 

16117 Plug, 1" Pipe.... 

16156 Gasket, Fuel Pump Mounting Flange. 

*16164 Tube, Admission Manifold Adj.. 

*16165 Elbow, Brazing Union %" x tV'. 

*16166 Cylinder Block R. H. 

*16167 Cylinder Block L. H. 

*16168 Stud, Cylinder Sleeve... 

*16169 Bearing, Connecting Rod, Inner.„. 

*16170 Cap, Connecting Rod Brg. Inner. 

16171 Bearing, Vertical Shaft—Lower. 

*16172 Camshaft . 

16173 Valve (Inlet & Exhaust). 

16174 Piston ... 

16175 Connection, I. D. Hose.. 

*16176 Tube, Oil Suction. 

*16177 Crankcase, Lower. 

16178 Plug, 25 m/m x 1.5 P. 

16179 Washer, Valve Tappet... 

*16180 Sleeve, Cylinder . 

*16181 Sleeve, Cylinder .... 

*16182 Sleeve, Cylinder . 

*16183 Sleeve, Cylinder . 

*16188 Manifold, Oil—Front . 

*16189 Manifold, Oil—Rear . 

16199 Gasket, Intake Manifold Tee..... 

*16220 Pipe, Cylinder Water Outlet. 

*16221 Flange, 154" O. D. Pipe. 

16222 Plose, 24" I. D. x 24" O. D. x 6". 

16225 Valve Guide, Exhaust. 

16226 Valve Guide, Admission... 

16281 Flange, Exhaust Pipe—Single .. 

16282 Flange, Exhaust Pipe—Double .. 

16283 Gasket, Exhaust Pipe Flange—Single . 

16284 Gasket Exhaust Pipe Flange—Double . 

*16285 Plate, Exhaust Port (single) . 

*16286 Plate, Exhaust Port (double) . 

16287 Hose, 24" I. D. x 24" O. D. x 7". 

16308 Nut, 8 m/m x 1.25 x W slotted. 

16326 Wire, Ignition. 

*16386 Flange, &" O. D. Pipe. 

16387 Gasket, O. D. Pipe Flange. 

16393 Housing, Starter. 

*16394 Cylinder Block R. H. 

*16395 Cylinder Block L. H. 

16396 Bushing, Starter Worm (Large) . 

* Not to be ordered as spares. 

75 


Quan. per Engine 
E-3 E-4 


1 

1 

1 

1 

1 

1 

2 

1 

1 

1 

1 

1 

1 

16 

4 

4 

2 

2 

16 

8 

1 

1 

1 

1 

16 

2 

2 

2 

2 

1 

1 

2 

2 

2 


1 

2 

1 

1 

1 

5 

1 

1 

1 

1 

1 

2 

1 

31 

1 

1 


4 

4 


1 

1 

1 

1 

16 


1 

1 

2 

2 

2 

8 

8 


2 

4 

2 

4 

2 

2 

16 16 
53' 
2 
2 

1 

1 

1 

1 


/ 





























































WRIGHT AERONAUTICAL ENGINES 

Part Quan. per Engine 

Number Part Name E-3 E-4 

16397 Bushing, Starter Worm (Small) . 1 

16398 Washer, Thrust Bearing. 1 

16399 Gear, Starter Magneto. 1 

16400 Pinion, Starter Magneto. 1 

*16402 Sleeve, Cylinder.-... 8 

16404 Lock, Starting Magneto... 1 

16405 Spring, Starting Magneto. 1 

16406 Lock Pad, Starting Magneto. 1 

16407 Stud, Starting Magneto. 2 

16408 Reinforcement, Starting Magneto Strap. 2 

16409 Strap, Starting Magneto. 1 

16413 Bell Crank, 90° x 2* x 211 . 1 

16414 Magneto, Starting (Dixie Type 100). 1 

*16415 Gear, Coupling (23 teeth) . 2 

*16416 Gear, Coupling (24 teeth) . 2 

16417 Gear, Magneto Shaft . 2 

16418 Gear, Magneto Drive Shaft . 2 

*16420 Wire, Stranded Lead Seal. 10' 10' 

16421 Manifold, Inlet R. H.1 

16422 Manifold, Inlet L. H. 1 

16423 Connection, Manifold Tee. 1 

16424 Nut, Packing 2}4" x 16 P. x . 1 

*16425 Pipe, Cyld. water inlet R. H. 1 

*16426 Pipe, Cyld. water inlet L. H. 1 

*16427 Camshaft . 2 

*16428 Tee, Inlet Manifold. 1 

*16429 Pipe, Camshaft Oil. 2 

*16431 Manifold, Cyld. ign. wire. 4 

16432 Adapter, 1" Pipe Thd. 'A" Pipe Thd. 2 

16433 Piston. 8 

16434 Marker, Ign. wire. 2 sets 

16435 Strap, Ign. Manifold.. 2 

16436 Connection, Straight y%” I. D. Hose. 1 

16437 Valve, Inlet & Exhaust.... 16 

*16438 Seat, Valve. 16 

16450 Stud, Drilled 8 m/m x 1.25 P. x 1 W . 8 

16451 Pin, Piston. 8 

16452 Plug, Piston Pin. 16 

16453 Cover, Cyld. 2 

16454 Bushing, Tachometer Shaft.. 1 

16455 Nut, 8 m/tn x 1.25 P. x l A" . 28 

16458 Plug, ft" Pipe...... 2 

16463 Bearing, Camshaft rear. 2 

16465 Lever 2h. straight.. 1 

16466 Gasket, Carburetor. 2 

16467 Carburetor, NA-U5 . 1 

*16468 Seal, Engine .... 12 12 

16471 Support, Carburetor_ 2 

16472 Nut, Special....... 2 

16509 Clamp, Magneto Advance. 2 

16519 Worm, Starter—Ratio 6 to 1. 1 

16520 Wheel, Starter Worm—Ratio 6 to 1. 1 

16521 Tube, Magneto Advance Wire._. 1 

16522 Wire, Magneto Advance. 1 

16523 Bolt, Magneto Advance. 2 

16524 Bushing, Magneto Advance Bolt. 2 

*16528 Crank, Starter. 1 

*16529 Shaft, Starter Crank. 1 

*16530 Dog, Starter Crank. 1 

* Not to be ordered as spares. 


76 





























































Part 

Number 

*16531 

*16532 

*16533 

*16534 

*16535 

*16536 

16551 

16581 

16644 

16718 

16719 
16722 


WRIGHT AERONAUTICAL ENGINES 


Quan. per Engine 

Part Name E-3 E-4 

Handle, Starter Crank. 1 

Sleeve, Starter Crank Handle. 1 

Spring, Starter Crank. 1 

Stop, Starter Crank Spring. 1 

Pin, A" dia. x 2fk". 1 

Pin, dia. x HI". 2 

Bearing, Vert. Shaft lower. 2 

Pin, .057 x Escutcheon. 2 

Dowel, I. D. x A" Hollow. 16 

Bushing, A O. D. x .317" I. D. x Si. 1 

Shaft, Fuel Pump Pinio;i. 1 

Cover, Fuel Pump. 1 


Numerical Assembly List 

for 


E-3 and E-4 Engines 


Assembly Quan. per Engine 

Number Assembly Name E-3 E-4 

11576 Shaft, Tachometer .... 1 

12008 Shaft & Impeller, Water Pump. 1 1 

12030 Manifold Admission R. H. 1 

12031 Manifold, Admission L. H. 1 

12109 Connecting Rod, Inner & Bushing. 4 4 

12110 Connecting Rod, Outer. 4 4 

12117 Vertical Shaft, Lower Gear. 2 

12125 Coupling, Magneto. 2 

12182 Bearing, Camshaft Centre.„. 2 

*12244 Shaft, Vertical, lower and Inter, dr. pin. 2 2 

12266 Breather Tube and strainer... 1 1 

*12323 Manifold, Oil. 1 1 

12324 Pipe, Water pump outlet. 2 2 

12325 Pipe, Cyld. water inlet R. H. 1 

12326 Pipe, Cyld. water inlet L. H. 1 

12328 Magneto Support machining. 1 1 

12329 Pump, Oil Assembly. 1 1 

12330 Shaft, Vertical. 2 

12331 Magneto Support. 1 1 

12336 Strainer, Oil.-. 1 1 

12346 Screen, Oil Suction Pump. 1 1 

12350 Pipe, Camshaft Oil R. H. 1 

12351 Pipe, Camshaft Oil L. H. 1 

12360 Manifold, Ig. wire.-. 1 

12361 Casing & Nut, Vertical Shaft. 2 2 

12376 Hub & Dowel Propeller.-. 1 1 

12381 Manifold, Cyld. ign. wire R. H. 2 

12382 Manifold, Cyld. ign. wire L. H. 2 

12383 Strainer, Breather tube....... 1 1 

12427 Conn. Rod, Outer machining. 4 4 

12428 Pump, water.-. 1 1 

12440 Pin, Piston..... 8 

12485 Gun Control drive. 2 

12574 Bearing, Camshaft centre.—. 2 

12604 Pump, Fuel, Wright Viking. 1 

12613 Conn. Rod Bearing & Cap.—. 4 4 

12614 Conn. Rod Inner & Bearing.... 4 4 

12615 Hub Flange, Propeller. 1 1 

* Not to be ordered as spares. 




77 




















































WRIGHT AERONAUTICAL ENGINES 


Assembly Quan. per Engine 

Number Assembly Name E-3 E-4 

12616 Hub, Propeller.._.... 1 1 

12617 Tee, Admission Manifold. 1 

12618 Valve and tappet. 16 

*12619 Crankshaft. 1 1 

12621 Crankshaft and Conn. Rod. 1 1 

12622 Camshaft. 2 

12623 Piston ...-.. 8 

12624 Magneto Support and fuel pump. 1 

12625 Magneto Support, complete. 1 1 

12626 Carburetor and Manifold tee. 1 

*12627 Crankcase machg...— 1 1 

*12628 Crankcase and oil plug. 1 1 

12629 Crankcase stud & bearing.-. 1 

*12630 Cyld. Bushing & Core plug R. H-- 1 

*12631 Cyld. Bushing & Core plug L. H. 1 

12632 Cylinder & Camshaft Bearing R. H. 1 

12633 Cylinder & Camshaft Bearing L. H. .... 1 

12634 Cylinder complete R. H. 1 

12635 Cylinder complete L. H. 1 

12636 Magneto and Gear........ 2 2 

*12639 Engine before valve timing. 1 

*12640 Engine after valve timing. 1 

*12641 Engine Packing. 1 

12642 Pipe Cyld. water outlet R. H... 1 1 

12643 Pipe Cyld. water outlet L. H. 1 1 

*12644 Cylinder Bushing & Core plug R. H. 1 

*12645 Cylinder Bushing & Core plug L. H. 1 

12678 Shaft Tachometer. 1 

12706 Magneto Strap Starting.... 

12718 Coupling, Magneto..... 

*12720 Engine, after valve timing. 1 

*12722 Housing, Starter (machg.). 

12731 Crankcase Stud & Bearing. 1 

12732 Starter, Hand...... 1 

12735 Tee, Admission Manifold. 1 

12736 Pipe, Camshaft Oil. 2 

12737 Manifold, Cyld. ign. wire R. H._. 2 

12738 Manifold, Cyld. ign. wire L. H. 2 

12739 Pipe, Cyld. water inlet R. H. 1 

12740 Pipe, Cyld. water inlet E- H. 1 

12741 Valve and Tappet . 16 

12742 Shaft, Vertical. 2 

12751 Manifold, Admission R. H. 1 

12752 Manifold, Admission L. H. 1 

12753 Manifold, ig. wire. 1 

12756 Carburetor and Manifold Tee. 1 

12770 Magneto & Gear Starting.. 

12790 Cylinder and Camshaft Bearing R. H. 1 

12791 Cylinder and Camshaft Bearing L. H. 1 

12792 Piston . 8 

12793 Pin, Piston... 8 

12794 Camshaft. 2 

*12795 Engine, before valve timing. 1 

12796 Cylinder, complete, R. H. 1 

12797 Cylinder, complete, L. H. 1 

*12798 Engine, packing. 1 

12804 Magneto Support and Hand Starter_ 1 

12805 Magneto Advance Clamp & Tube. 1 

12806 Plandle Starter. 1 

* Not to be ordered as spares. 


78 



























































WRIGHT AERONAUTICAL ENGINES 


Alphabetical Parts List 

for 

E-3 and E-4 Engines 


Part Name 
Adapter, Starter 


Adapter, 1" Pipe Thd. K" Pipe Thd.'. 

B 

Ball, dia.. 

Ball Bearing, #6203 . 

Ball Bearing H. B. #6408. 

Ball Bearing H. B. #6208.. 

Ball Bearing H. B. #6204. 

Bearing, Camshaft—Front . 

Bearing, Camshaft—Centre . 

Bearing Camshaft—Rear . 

Bearing, Connecting Rod—Inner . 

Bearing, Crankshaft Front—Lower ... 

Bearing, Crankshaft Front—Upper . 

Bearing, Crankshaft Intermediate—Upt 


Bearing, Vertical Shaft—Lower 
Bearing, Vertical Shaft—Upper 

Bell Crank, 90°—2 3 9 2 x 2M. 

Body, Fuel Pump . 

Body, Oil Pressure Relief . 

Body, Oil Pump . 

Body, Water Pump . 

Bolt, Connecting Rod—Outer .... 
Bolt, Connecting Rod—Inner .... 

Bolt, Magneto Advance . 

Bolt, Propeller Hub . 

Bolt, 8 m/m x 1.25" P. x 1 
Bolt, y x 28 P. x £§ long. 


Bushing, Magneto Advance Bolt. 

Bushing, Magneto Support Screw. 

Bushing, Spark Plug. 

Bushing, Starter Worm (large). 

Bushing, Starter Worm (small). 

Bushing, Tachometer Drive Shaft . 

Bushing, Tachometer Shaft . 

Bushing, Water Pump Drive Shaft. 

Bushing, Water Pump . 

Bushing, tV' O. D. x .317" I. D. x §£. 
Button, Water Pump Thrust. 


E-3 E-4 

Quan. per Quan. per 

Number Engine Number Engine 




16089 

1 

...15292 

...15305 

2 

2 

16432 

2 



16080 

1 

... 6203 

4 

6203 

4 

... 6408 

1 

6408 

1 

... 6208 

1 

6208 

3 

... 6204 

4 

6204 

4 

... 9619 

2 

15990 

2 

..11373 

2 

15991 

2 

... 9622 

2 

16463 

2 

..16169 

4 

16169 

4 

...11009 

1 

11009 

1 

.11008 

1 

11008 

1 

.. 9968 

3 

9968 

3 

- 9967 

3 

9967 

3 

..14630 

1 

14630 


..11880 

1 

11880 

1 

..16171 

2 

16551 

2 

..14670 

2 

16011 

2 



16413 

1 

..16093 

1 

16093 

1 

..11527 

1 

11527 

1 

..14610 

1 

14610 

1 

..14636 

1 

14636 

1 

..11683 

8 

11683 

8 

..11689 

16 

11689 

16 



16523 

2 

..11915 

8 

11915 

8 

..11517 

6 

11517 

6 



14930 

4 

.. 9635 

8 

9635 

8 

..11937 

2 

11937 

2 

..T-950 

20 

T-950 

20 

..15253 

1 

15253 

1 



16524 

2 

..16005 

2 

16005 

2 

.11778 

16 

16396 

1 



16397 

1 

..11469 

1 

16454 

1 

..11917 

1 

11917 

1 

..10378 

1 

10378 

1 



16718 

1 

.11198 

2 

11198 

2 

..16172 

2 

16427 

2 

.. 9960 

1 

9960 

1 


79 
















































WRIGHT AERONAUTICAL ENGINES 




E-3 


E-4 



Quan. per 


Quan. per 

Part Name 

Number 

Engine 

Number 

Engine 

Cap, Camshaft Center Brg. 

.11374 

2 

15992 

2 

Cap, Connecting Rod Brg.—Inner. 

.16170 

4 

16170 

4 

Cap, Oil Manifold . 

.15461 

1 

15461 

1 

Cap. Oil Pressure Relief . 

.11893 

1 

11893 

1 

Carburetor, (NA-D4) Stromberg . 

.11908 

1 



Carburetor, (NA-U5) . 



16467 

1 

Casing, Vertical Shaft .. 

.14685 

2 

14685 

2 

Clamp, Magneto Advance. 



16509 

2 

Clamp for I. D. Hose.. 

.11245 

8 

11245 

8 

Clamp for 1" I. D. Hose.. 

.14649 

4 

14649 

4 

Clip, Vs" 0. D. Pipe. 

.15283 

2 

15283 

2 

Cock, Spring Key . 

.11796 

1 

11796 

2 

Collar, Starter Worm. 



16084 

1 

Connecting Rod, Outer.. 

.11673 

4 

11673 

4 

Connecting Rod, Inner. 

.11674 

4 

11674 

4 

Connection, Manifold Tee . 



16423 

1 

Connection, tk" I. D. Hose. 

.16175 

1 

16175 

1 

Connection, I. D. Hose. 

.16092 

1 

16092 

1 

Connection, 24" I. D. Hose. 

.15294 

4 

15294 

4 

Connection, Straight I. D. Hose.... 



16436 

1 

Connection, YY I. D. Hose. 

.16097 

1 

16097 

1* 

Connection, 24" I. D. Hose. 

.15307 

2 

15307 

2 

Cotterpin, x 1" long. 

.11445 

3 

11445 

3 

Cotterpin, ST' dia. x 24". 

.11707 

32 

11707 

16 

Cotterpin, A" dia. x 1". 

. B-64 

2 



Cotterpin, A" dia. 

. 657 

2 



Cotterpin, A" x 154". 

.B-63 

2 

B-63 

2 

Cotterpin . 

.B-64 

18 

B-64 

30 

Cotterpin . 

. 656 

4 

656 

4 

Cotterpin . 

. 657 

8 

567 

10 

Cotterpin ... 

.11169 

9 

11169 

11 

Cotterpin . 

.11207 

2 

11207 

2 

Cotterpin . 

.11348 

2 

11348 

2 

Cotterpin . 

.11945 

2 

11945 

2 

Coupling, Magneto . 

.11897 

2 

11897 

2 

Coupling, Tachometer . 

.10561 

1 

10561 

1 

Cover, Cylinder, R. H. 

.14457 

1 



Cover, Engine . 

.11272 

1 

11272 

1 

Cover, Cylinder, L. H. 

.14455 

1 

16453 

2 

Cover, Fuel Pump. 

.16094 

1 

16722 

1 

Cover, Fuel Pressure Relief. 

.14702 

1 

14702 

1 

Cover, Magneto Support. 

.15087 

1 


1 

Cover, Oil Filter . 

.14643 

1 

14643 

1 

Cover, Packing Box Seal. 

.11993 

2 

11993 

2 

Cover, Starter . 



16076 

1 

Cover, Water Pump . 

.15282 

1 

15282 

1 

Crank, Starter . 



16528 

1 

Crankcase, Upper Half . 

.14602 

1 

14602 

1 

Crankcase, Lower . 

.16177 

1 

16177 

1 

Crankshaft . 

.11865 

1 

11865 

1 

Cup, Priming . 

.11973 

4 

11973 

4 

Cylinder Block, R. H. 

.16166 

1 

16394 

1 

Cvlinder Block, L. H. 

.16167 

1 

16395 

1 

D 

Dog, Starter Crank . 



16530 

1 

Dog, Vertical Shaft . 

.14671 

4 

14671 

4 

Dowel, Connecting Rod Bushing. 

.11163 

8 

11163 

8 

Dowel, Propeller Hub . 

.14098 

1 

14098 

1 


80 



























































WRIGHT AERONAUTICAL ENGINES 


Part Name 

Dowel, Lb" I. D. x *4" O. D. x 32 

Hollow . 

Dowel, .236" dia. x y 8 " . 

Dowel, Lb x fi . 

Dowel, Lb" dia. x Y" Dowel. 

Dowel, .315" dia. x y 8 " . 

E 

Elbow, Brazing Union x Lb" . 

Elbow, Connection l / 2 n I. D. Hose. 

Enamel, Gray . 

Enamel, Kay & Ess Quick Air Drying... 

F 

Flange, Exhaust Pipe—Single . 

Flange, Exhaust Pipe—Double . 

Flange, Exhaust Pipe . 

Flange, Oil Pipe, E. H. 

Flange, Oil Pipe, R. H. 

Flange, Propeller Hub . 

Flange, Water Pipe . 

Flange, Lb" O. D. Pipe. 

Flange, 1 %" O. D. Pipe. 

Fiange, Oil Suction Pump Screen. 

G 

Gasket, Breather Tube . 

Gasket, Carburetor .-. 

Gasket, Crankcase Rear Cover . 

Gasket, Cylinder Base . 

Gasket, Cylinder Cover . 

Gasket, Exhaust Pipe Flange . 

Gasket, Exhaust Pipe Flange—Single ... 
Gasket, Exhaust Pipe Flange—Double ... 

Gasket, Fuel Pump Mounting Flange. 

Gasket, Intake Manifold Tee . 

Gasket, Intake Pipe . 

Gasket, Intake Pipe and Tee.-. 

Gasket, Interrupter Gr. Shaft Housing- 

Gasket, Magneto Support . 

Gasket, Magneto Support Cover . 

Gasket, Oil Manifold Plug . 

Gasket, Oil Pipe Flange . 

Gasket, Oil Pump Cover Plate. 

Gasket, Spark Plug Bushing. 

Gasket, Vert. Shaft Gear Cover. 

Gasket, Water Pipe . 

Gasket, Water Pump Cover. 

Gasket, Lb" O. D. Pipe Flange. 

Gasket, I. D. 

Gasket, y 8 ' I. D.-. 

Gasket, ii" I. D. 

Gasket, it" I. D. 

Gasket, W I. D. x V/ 8 " O. D. x 

Gasket, 1" I. D. 

Gasket, V/T' I. D. 

Gasket, \W dia. x 2}4" sq. 

Gasket, 2\Y I. D. 

Gear, Camshaft .-. 



E-3 


E-4 


Quan. per 

Quan. per 

Number 

Engine 

Number 

Engine 



16644 

16 

..B-768 

16 

B-768 

16 



14873 

2 

... 1437 

4 

1437 

4 

...B-767 

8 

B-767 

8 

...16165 

1 

16165 

1 

...16098 

2 

16098 

2 



16457 


...14163 


14163 




16281 

4 



16282 

2 

...14688 

8 



...14673 

1 



...14672 

1 



...10540 

1 

10540 

1 

...11197 

4 

11197 

4 



16386 

2 

...16221 

2 

16221 

2 

...14603 

1 

14603 

1 

...B-759 

1 

B-759 

1 

...B-786 

1 

16466 

2 



14981 

2 

.... 1439 

2 

1439 

2 

T-1032 

2 

T-1032 

2 

....14689 

8 





16283 

4 



16284 

2 

....16156 

1 

16156 

1 



16199 

2 

...B-788 

4 

B-788 

4 

...B-785 

2 



....11960 

2 

11960 

2 

.... 1426 

1 

1426 

1 

....14655 

1 

14655 

1 

...B-760 

1 

B-760 

1 

....14683 

2 



....14632 

1 

14632 

1 

-11574 

16 



....10685 

2 

10685 

2 

.T-1092 

16 

T-1092 

8 

.T- 982 

1 

T- 982 

1 



16387 

2 

... B-27 

4 

B-27 

2 

-11559 

1 

11559 

1 

... B-28 

13 

B-28 

20 

...11868 

2 

11868 

2 

...14711 

1 

14711 

l 

... B-33 

1 

B-33 

1 

....11440 

33 

11440 

2 

...15256 

2 

15256 

2 

... B-32 

1 

B-32 

1 

...14665 

2 

10474 

2 


81 






















































WRIGHT AERONAUTICAL ENGINES 


Part Name 

Number 

E-3 

Quail, per 
Engine 

Number 

E-4 

Quan. per 
Engine 

Gear, Crankshaft .. 

. 9638 

1 

9638 

1 

Gear, Fuel Pump Internal. 

.16095 

1 

16095 

1 

Gear, Interrupter Drive . 

.11947 

2 

11947 

2 

Gear, Mag - . Coupling (23 teeth) 

Int.11903 

2 

16415 

2 

Gear, Mag. Coupling (24 teeth) 

Int.11904 

2 

16416 

2 

Gear, Magneto Drive Shaft . 

.14314 

2 

16418 

2 

Gear, Magneto Shaft (23 teeth). 

.11906 

2 

16417 

2 

Gear, Oil Pressure Pump . 

.14607 

1 

14607 

1 

Gear, Oil Pump Drive . 

.14605 

3 

14605 

3 

Gear, Oil Section Pump. 

.14608 

2 

14608 

2 

Gear, Oil & Water Pump Drive.. 

.14629 

1 

14629 

1 

Gear, Pump Drive . 

.15252 

1 

15252 

1 

Gear, Pump Idler l / 2 " Face. 

.11757 

1 

11757 

1 

Gear, Pump Idler y%" Face.. 

.14633 

2 

14633 

2 

Gear, Starter Magneto . 



16399 

1 

Gear, Vertical Shaft—Lower. 

. 9941 

2 

9941 

2 

Gear, Vertical Shaft—Upper. 

.14668 

2 

14668 

2 

Guide, Fuel Pressure Relief Adj. Screw....15287 

1 

15287 

1 

H 

Handle, Starter Crank . 



16531 

1 

Hose, Manifold, Water Pipe Coupling. ..11204 

2 

11204 

2 ‘ 

Hose, Water Pump Outlet. 

.14648 

2 

14648 

2 

Hose, y I. D. x y 0. D. x 6". 
Hose, y I. D. x y 0. D. x 7". 

.16222 

2 

16287 

2 

Housing, Interrupter Drive Gear 

.11948 

2 

11948 

2 

Housing, Interrupter Gear Shaft 

.14207 

2 

14207 

2 

Hub, Propeller . 

I 

Impeller, Water Pump . 

.14460 

1 

14460 

1 

.11658 

1 

11658 

1 

Insert, Spark Plug . 



15939 

16 

K 

Key, Camshaft Gear . 

.T-129 

2 

T-129 

2 

Key, Propeller Hub . 

.11626 

1 

11626 

1 

Key, #3 Woodruff . 

.11680 

5 

11680 

7 

L 

Lock, Crankshaft Cent. Nut . 

.10693 

1 

10693 

1 

Lock, Mag. Dr. Gear B. B. Ret. Nut.14653 

1 

14653 

1 

Lock, Starting Magneto . 



16404 

1 

Lock, Thrust Bearing Nut .. 

.11012 

1 

11012 

1 

Lockwasher, for 6 m/m dia. 

.B-789 

24 

B-789 

28 

Lockwasher, for 8 m/m dia. 

.B-790 

73 

B-790 

61 

Lockwasher, J4 x x . 



14941 

4 

M 

Magneto, R. H. (Dixie SS-8). 

.16020 

2 

16020 

2 

Magneto Starting . 

.11342 

1 

16414 

1 

Manifold, Clip Wire . 

.15078 

8 

15832 

8 

Manifold, Cyl. Ignition Wire . 

.11981 

4 

16431 

4 

Manifold, Ignition Wire, L. H.... 

.14484 

1 

14484 

1 

Manifold, Ignition Wire, R. H. 

.14726 

1 

14726 

1 

Manifold, Inlet—L. H. 

.10443 

1 

16422 

1 

Manifold, Inlet—R. H. 

.10444 

1 

16421 

1 

Manifold, Oil—Front . 

.16188 

1 

16188 

1 

Manifold, Oil—Rear . 

.16189 

1 

16189 

1 

Marker, Ignition Wire (2 sets)... 

.11570 

2 sets 

16434 

2 sets 


82 

















































WRIGHT AERONAUTICAL ENGINES 


Part Name 


N 


E-3 E-4 

Quan. per Quan. per 

Number Engine Number Engine 


Nut, Megneto Drive Gear B. B. Ret. 

Nut, Magneto Pinion B. B. 

Nut, Packing, Inlet Pipe.„. 


Nut, Packing 2 Yz" x 16 P. x 34". 


Nut, Propeller Thrust Brg. 

Nut, Special . 

Nut, Vertical Shaft Casing 


Nut, 8 m/m x 1.25 P. x %" . 

Nut, Plain 8 m/m x 1.25 P. x W. 
Nut, 8 m/m x 1.25 x W slotted. 
Nut, Plain 8 m/m x 1.25 P. x tk". 

Nut, Slotted 8 m/m x 1.25 P. 

Nut, Plain 10 m/m x 1.5 P. 

Nut, 10 m/m x 1.5 P. x y slotted 
Nut, Plain 10 m/m x 1.5 P. x W. 

Nut, 10 m/m x 1.5 P. x SI". 

Nut, 12 m/m x 1.25 P. x tV' slotte 

Nut, Castled 12 m/m x 1.75 P.. 

Nut, 14 m/m x 1.5 P. x tV' slotted 

Nut, 14 x 28 P. Plain.. 

Nut, Castled tV' x 24 P. 

Nut, y x 24 x 54" slotted. 

Nut, y x 16 x 3y . 


Pad, Starting Magneto Lock. 

Pin, Piston ... 

Pin, Tachometer Coupling. 

Pin, Taper #4 x 154. 

Pin, ik" Dia. x y lg. Straight. 
Pin, .080" Dia. x y Escutcheoi 

Pin, tV' Dia. x 134". 

Pin, tV' Dia. x 2 t 3 g. 

Pin, h" Dia. x H§. 

Pin, .057" Dia. x 54, Escutcheon. 

Pinion, Fuel Pump. 

Pinion, Interrupter Drive. 


..T-989 

2 

T-989 

2 

-14678 

2 




1 



..15600 

2 

15600 

2 

..11688 

8 

11688 

8 

..10637 

1 

10637 

1 

..14701 

1 

14701 

1 

..15258 

1 

15258 

1 

..14652 

1 

14652 

1 

..14433 

2 

14433 

2 

..10432 

1 



.T-990 

2 

T-990 

2 

..14679 

2 

16424 

1 

..14462 

7 

14462 

7 

..14461 

1 

14461 

1 

-14106 

1 

14106 

1 

-14105 

1 

14105 

1 

..11003 

1 

11003 

1 



16472 

2 

..14680 

2 

14680 

2 

-10357 

2 

10357 

2 

.11682 

1 

11682 

1 

. B-93 

30 

B-93 

28 



16455 

28 

..11304 

16 



.16308 

16 

16308 

16 

.11303 

85 

11303 

73 

.11302 

16 

11302 

26 

.. 1444 

6 

1444 

3 

. 1443 

2 

1443 

2 

.11305 

72 

11305 

72 

.15261 

10 

15261 

8 

.11899 

2 

11899 

2 

.14635 

2 

14635 

2 

.14313 

. 2 

14313 

. 2 



14931 

8 

.14712 

3 

14712 

3 

.11503 

16 

11900 

2 

.14692 

1 

14692 

1 

11188 

6 ft. 

11188 

6: 

11168 

9 ft. 

11168 

91 



16406 

1 

.15260 

8 

16451 

8 

.11206 

1 

11206 

1 



16081 

2 

.11443 

10 

11443 

12 

.15598 

3 

15598 

3 



16082 

2 



16535 

1 



16536 

2 



16581 

2 

.16096 

1 

16096 

1 

.11950 

2 

11950 

2 

.14432 

2 

14432 

2 


83 


























































WRIGHT AERONAUTICAL ENGINES 


Part Name 


Number 


E-3 E-4 

Quan. per Quan. per 

Engine Number Engine 


Pinion, Starter Magneto. 



16400 

1 

Pipe, Cam Housing Oil Return, R. H. .. 

.14675 

1 



Pipe, Cam Housing Oil Return, L. H. .. 

.14676 

1 



Pipe, Camshaft Oil. 

.14674 

2 

16429 

2 

Pipe, Cylinder Water Inlet, L. H. 

.14647 

1 

16426 

1 

Pipe, Cylinder Water Inlet, R. H. 

.14646 

1 

16425 

1 

Pipe, Cylinder Water Outlet . 

.16220 

2 

16220 

2 

Pipe, Manifold Tee Outlet Yg O. D. 

.15265 

1 

15265 

1 

Pipe, Water Pump Outlet. 

.14684 

2 

14684 

2 

Piston . 

.16174 

8 

16433 

8 

Plate, Engine License. 

....11214 

1 

11214 

1 

Plate, Engine Name. 

....15019 

1 

15019 

1 

Plate, Exhaust Port . 

.14690 

8 

16285 single 4 




16286 double 2 

Plate, Hub Flange Name. 

....15275 

1 

15275 

1 

Plate, Oil Filter End. 

....14641 

1 

14641 

1 

Plate, Oil Pump Cover. 

.14609 

1 

14609 

1 

Plate, Water Hole. 

....11137 

10 

11137 

2 

Plug, Crankshaft 25 m/m x 1.5 P. 

....11323 

8 

11323 

8 

Plug, Crankshaft—Small . 

....11324 

4 

11324 

4 

Plug, Oil & Water Pump Drive Shaft.... 

....14631 

2 

14631 

2 

Plug, Piston Plug. 

....14696 

16 

16452 

16 

Plug, Pipe VY (Std.). 

....14408 

1 

14408 

2 

Plug, Spark (Champion A. C. Large 




Porcelain) . 

....11985 

16 

11985 

16 

Plug, Yg Pipe. 



16458 

2 

Plug, y 2 " Pipe. 

....16044 

2 

16044 

2 

Plug, H" x 18 P.. 

....11819 

5 

11819 

5 

Plug, Wood for Yg" I. D. Hose. 

....14126 

2 

14126 

2 

Plug, Pipe. 

....11233 

1 

11233 

1 

Plug, 1" Pipe. 



16117 

31 

Plug, 12 m/m x 1.25 P. 

....11313 

2 



Plug, 18 m/tn x 1.5 P. 

....15304 

8 

15304 

4 

Plug, 25 m/m x 1.5 P. 

....16178 

1 

16178 

1 

Plug, 38 m/fn x 1.5 P. 

.... 9667 

30 

9667 

1 

Plunger, Oil Pressure Relief. 

...11531 

1 

11531 

1 

Primer, Kay & Ess Aero Metal. 

...14164 


14164 


Primer, Flat Gray. 



16456 


R 

Ring, Breather Tube. 

....14084 

1 

14084 

1 

Ring, Ignition Wire—Large. 

....11449 

8 

11449 

8 

Retainer, Interrupter Gr. Shaft B. B. 

....14191 

2 

14191 

2 

Retainer, Starter Ball Bearing. 



16075 

1 

Ring, Oil Filter. 

....14640 

1 

14640 

1 

Ring, Piston L. H. 

. 594-P 

8 

594-P 

8 

Ring, Piston R. H. 

. 595-P 

16 

595-P 

16 

Ring, Piston Oil. 

. 596-P 

8 

596-P 

8 

Ring, Propeller Hub Nut Lock.. 

....11397 

1 

11397 

1 

Ring, Vert. Shaft Casing Nut Lock. 

....10487 

2 

10487 

2 

Rivet, Flat Head. 

....11322 

4 

11322 

4 

Rivet, dia. FI. Hd. X" lg. 

...11983 

16 

11983 

16 

Rivet, Round Head . 

....11901 

24 

11901 

24 

Rivet, Round Head . 

....11161 

8 

11161 

8 

S 

Screw, Camshaft Center Bearing. 

...T-952 

8 

T-952 

8 

Screw, Cylinder Cover . 

....11677 

22 

11677 

22 

Screw, Fuel Pressure Relief Adj. 

....14700 

1 

14700 

1 


84 






















































WRIGHT AERONAUTICAL ENGINES 




E-3 


E-4 

Part Name 

Number 

Quan. per 
Engine 

Number 

Quan. per 
Engine 

Screw, Main Bearing Dowel 

.T-970 

4 

T-970 

4 

Screen, Oil Filter—Coarse Mesh . 

.14639 

1 

14639 

1 

Screen, Oil Filter—Fine Mesh. 

.14638 

1 

14638 

1 

Screw, Oil Pump Gear Brg. Set. . 

.11775 

1 

11775 

1 

Screen, Oil Suction Pump—Rear 

.14604 

1 

14604 

1 

Screw, Propeller Hub Key. 

.B-781 

2 

B-781 

10 

Screw, Vert. Shaft Brg. Dowel... 

.11366 

2 

11366 

2 

Screw, Water Pump Cover. 

.T-960 

6 

T-960 

6 

Screw, 5 m/m x .75 x A" C'ts’k 

Hd. 




Mach. 


8 



Screw, 5 m/m x .75 P. x A" Fill 

Hd. 




Mach.. 


3 

B-803 

3 

Screw, Lock 6 m/m x If" lg. 

.B-754 

1 

B-754 

1 

Screw, 10 m/m x 1.5 P. x ft" Cap.... 

.16002 

2 

16002 

2 

Screw, 10 m/m 1.5 P. x 1 W C’ts’k Hd. 


16090 

1 

Screw, R. H. Brass Machine #4-32P. 

.12053 

8 

12053 

8 

Screw, A x 18 P. 



16086 

2 

Screw, M" x 16 P. x 1A" Cap. 

.15421 

8 

15421 

8 

Screw, 14 x 24 x A" Fil. Hd. 

.11820 

2 

11820 

2 

Seal, Engine. 

.16468 

12 

16468 

12 

Seat, Valve. 



16438 

16 

Shaft, Fuel Pump Pinion.. 

.15255 

1 

16719 

1 

Shaft, Interrupter Gear. 

.11951 

2 

11951 

2 

Shaft, Magneto Drive Gear. 

.14651 

1 

14651 

1 

Shaft, Oil & Water Pump Drive. 

.14606 

1 

14606 

1 

Shaft, Starter Chank. 



16529 

1 

Shaft, Starter Drive Shaft (Short).... 



16088 

1 

Shaft, Tachometer Drive. 

.11468 

1 

11468 

1 

Shaft, Vertical. 

.14669 

2 

14669 

2 

Shaft, Water Pump. 

.10376 

1 

10376 

1 

Sleeve, Cylinder. 

.16180 

2 

16402 

8 

Sleeve, Cylinder . 

.16181 

2 



Sleeve, Cylinder. 

.16182 

2 



Sleeve, Cylinder. 

.16183 

2 



Sleeve, Oil Manifold. 

.11171 

1 

11171 

1 

Sleeve, Starter Crank Handle. 



16532 

1 

Spring, Breather Tube Oil Strainer.... 

.14085 

1 

14085 

1 

Spring, Fuel Pressure Relief Valve. 

.15259 

1 

15259 

1 

Spacer, Interrupter Ball Bearing.. 

.11946 

2 

11946 

2 

Spacer, Thrust Bearing. 

.11812 

1 

11812 

1 

Spring, Interrupter Brace. 

.14024 

2 

14024 

2 

Spring, Magneto Coupling. 

.11896 

2 

11896 

2 

Spacer, Magneto Pinion B. B. 

.14435 

2 

14435 

2 

Spring, Mag. Pinion B. B. Lock Nut 

.14656 

1 

14656 

1 

Spring, Oil Filter. 

.14642 

1 

14642 

1 

Spring, Oil Pressure Relief. 

.11530 

1 

11530 

1 

Spring, Starter Crank. 



16533 

1 

Spring, H x 1" long. 



16079 

1 

Spring, Valve (Inner) . 

.11406 

16 

11406 

16 

Spring, Valve (Outer). 

.11407 

16 

11407 

16 

Spring, H" O. D. x 1". 

.16099 

1 

16099 

1 

Stop, Starter Crank Spring. 



16534 

1 

Strainer, Breather Tube Oil. 

.14083 

1 

14083 

1 

Strap, Ignition Manifold ... 

.11442 

2 

16435 

2 

Strap, Starting Magneto (Reinforcement) 


16408 

2 

Strap, Starting Magneto . 



16409 

1 

Stud, Crankshaft Center Brg. 

.T-956 

8 

T-956 

8 

Stud, Crankshaft Front Brg. 

.T-958 

2 

T-958 

2 

Stud, Crankshaft Rear Brg. 

.T-957 

2 

T-957 

2 


85 


























































WRIGHT AERONAUTICAL ENGINES 




E-3 


E-4 



Quan. per 


Quan. per 

Part Name 

Number 

Engine 

Number 

Engine 

Stud, Cylinder. 

.T-955 

72 

T-955 

72 

Stud, Cylinder Sleeve. 

.16168 

16 



Stud, Interrupter Brace. 

.14023 

2 

14023 

2 

Stud, Starter Housing. 



16091 

5 

Spring, Starting Magneto. 



16405 

1 

Stud, Starting Magneto. 



16407 

2 

Stud, 6 m/m x 1 P. x 1&" long. 

.B-784 

10 

B-784 

4 

Stud, 6 m/m x 1.25 x . 



11386 

4 

Stud, 6 m/m x 1 P. x II" long. 

.B-794 

8 

B-794 

16 

Stud, 6 m/m x 1 p. x 1 W long. 

.11851 

4 

11851 

4 

Stud, 8 m/m x 1.25 P. x %" . 



11971 

8 

Stud, 8 m/tn x 1.25 m/m P. x 111". 

.15272 

4 

15272 

4 

Stud, 8 m/m x 1.25 P. x ItV' lg. 

.T-210 

16 

T-210 

28 

Stud, 8 m/m x 1.25 P. x 1*". 

.11962 

2 

11962 

2 

Stud, 10 m/m x 1.5 P. x Hz" lg. 

. 1442 

3 

1442 

3 

Stud, 8 m/m x 1.25 P. x 1*" lg. 

.T-961 

36 

T-961 

24 

Stud, 8 m/m x 1.25 P. x HY' lg. 

.14059 

2 

14059 

2 

Stud, 8 m/m x 1.25 P. x Hi" lg. 

.T-949 

8 



Stud, 10 m/m x 1.5 P. x Irk" lg. 

. 1441 

3 



Stud, 8 m/m x 1.25 P. x Hi" lg. 

.T-954 

10 

T-954 

10 

Stud, Drilled 8 m/m x 1.25 P. x Hi"-. 



16450 

8 • 

Stud, 8 m/m x 1.25 P. x HI" long. 

.11844 

6 

11844 

6 

Stud, 8 m/m x 1.25 P. x Hi" lg. 

.14060 

2 

14060 

2 

Stud, 8 m/m x 1.25 P. x Hi" lg. 

.11879 

13 

11879 

13 

Stud, 8 m/m x 1.25 P. x 3&" long. 

.T-948 

12 

T-948 

12 

Stud, ^ x 20 x 28 P. (Std.) x 1" long.. 



14960 

4 

Support, Carburetor. 



16471 

2 

Surfacer, Flint’s Aluminum.. 

.14165 


14165 


Support, Magneto. 

.14650 

1 

14650 

1 

T 

Tag Miagneto (Inside). 

.15266 

1 

15266 

1 

Tag, Magneto (Outside).. 

.15267 

1 

15267 

1 

Tape, Friction Va" . 

.15080 

14' 

15080 

14' 

Taperpin, Mag. Drive Pinion Vert. Shaft 




Gear.. 

. 9930 

2 

9930 

2 

Tee, Inlet Manifold. 

.10428 

1 

16428 

1 

Tee, Water Pump Drain. 

.15264 

1 

15264 

1 

Terminal, Ignition Wire. 

.11340 

16 

11340 

16 

Tube, Admission Manifold Adj. 

.16164 ‘ 

1 



Tube, Breather.. 

. 9959 

1 

9959 

1 

Tube, Magneto Advance Wire. 



16521 

1 

Tube, Oil Manifold. 

.11164 

3 

11164 

3 

Tube, Oil Suction. 

.16176 

1 

16176 

1 

Tube, Wire Manifold End.... 

.11160 

2 

11160 

2 

V 

Valve, (Inlet & Exhaust). 

.16173 

16 

16437 

16 

Valve, Fuel Pressure Relief. 

.15286 

1 

15286 

1 

Valve Guide, Admission. 

.11686 

8 

16226 

8 

Valve Guide, Exhaust. 

.11687 

8 

16225 

8 

Valve Tappet . 

.11972 

16 

11972 

16 

W 

Washer, Camshaft Front Brg. 

. 9939 

2 

9939 

2 

Washer, Crankshaft Ball Bearing. 

.10510 

1 

10510 

1 

Washer, Magneto Coupling Spring. 

.11898 

2 

11898 

2 

Washer, Thrust Bearing. 



16398 

1 

Washer, Valve Tappet. 

.16179 

16 

16179 

16 


86 






















































WRIGHT AERONAUTICAL ENGINES 


E-3 E-4 


Part Name 

Number 

Quan. per 
Engine 

Number 

Quan. per 
Engine 

Washer, Vert. Shaft Thrust. 

.11730 

2 

11730 

2 

Washer, Valve Spring—Lower. 

.11513 

16 

11513 

16 

Washer, ll x y 2 x . 


14994 

4 

Washer, §£" I. D. x O. D. x 

.11705 

3 

11705 

13 

Washer, §£" I. D. x O. D. x tV" - 

.14025 

2 

14025 

2 

Washer, II x x . 



14996 

5 

Washer, Plain W' I. D. 

.14058 

4 

14058 

4 

Washer, W I. D. Plain. 

. 1458 

34 

1458 

17 

Washer, Plain I. D. x U" O. D 

.14634 

2 

14634 

2 

Wheel, Starter Worm, Ratio 6 to 1.... 



16520 

1 

Wire, Magneto Advance. 



16522 

1 

Wire, Stranded Lead Seal. 

.16420 

10' 

16420 

10' 

Wire, Dia. .030*' to .045". 

.11630 

16' 

11630 

16' 

Worm, Starter, Ratio 6 to 1. 



16519 

1 


Alphabetical Assembly List 

for 

E-3 and E-4 Engines 

Assembly Number 


Assembly Name E-3 E-4 

B 

Bearing, Camshaft Centre. 12182 12574 

Breather Tube, and strainer. 12266 12266 

C 

Camshaft . 12622 12794 

Carburetor and Manifold tee. 12626 12756 

Casing & Nut, Vertical Shaft. 12361 12361 

Connecting Rod, Inner & Bushing. 12109 12109 

Connecting Rod, Outer . 12110 12110 

Connecting Rod, Bearing & Cap. 12613 12613 

Connecting Rod, Inner & Bearing. 12614 12614 

Connecting Rod, Outer Machining. 12427 12427 

Coupling Magneto . 12125 12125 

Coupling Magneto . 12718 

Crankcase, machg. 12627 12627 

Crankcase and oil pulg. 12628 12628 

Crankcase, Stud & Bearing. 12629 12731 

Crankshaft. 12619 12619 

Crankshaft and Conn. Rod. 12621 12621 

Cylinder, complete R. H. 12634 12796 

Cylinder, complete L. H. 12635 12797 

Cylinder, Bushing & Core Plug R. H. 12630 12644 

Cylinder, Bushing & Core Plug L. H. 12631 12645 

Cylinder and Camshaft Bearing R. H. 12632 12790 

Cylinder & Camshaft Bearing L. H. 12633 12791 

E 

Engine, before valve timing. 12639 12795 

Engine, after valve timing. 12640 12720 

Engine, Packing. 12641 12798 

G 

Gear, Vertical Shaft lower. 12117 

Gun Control drive. 12485 12485 


87 












































WRIGHT AERONAUTICAL ENGINES 


Assembly Name 

H 

Handle, Starter. 

Housing, Starter (machg.) 

Hub, Propeller .. 

Hub & Dowel Propeller. 

Hub, Flange Propeller. 


M 

Magneto, Advance Clamp & tube. 

Magneto and Gear. 

Magneto & Gear Starting. 

Magneto Support ... 

Magneto Support Complete.. 

Magneto Support Machining. 

Magneto Support and fuel pump. 

Magneto Support and Hand Starter. 

Magneto Strap Starting. 

Manifold Admission R. H. 

Manifold Admission L. H. 

Manifold Cyld. ign. wire R. H. 

Manifold Cyld. ign. wire L. H. 

Manifold Ig. v/ire... 

Manifold Oil .. 


P 

Pin, Piston. 

Pipe, Camshaft Oil R. H. 

Pipe, Camshaft Oil L. H. 

Pipe, Cyld. water inlet R. H.. 

Pipe, Cyld. water inlet E. H. 

Pipe, Cyld. water outlet R. H.. 
Pipe, Cyld. water outlet L. H. 

Pipe, water pump outlet. 

Piston... 

Pump, Fuel, Wright Viking. 

Pump, Oil .. 

Pump, Water. 


S 

Screen, Oil suction pump. 

Shaft & Impeller Water pump. 

Shaft, Tachometer.... 

Shaft, Vertical . 

Shaft, Vertical, lower & Inter, dr. pin. 

Starter . 

Strainer, Breather tube. 

Strainer, Oil ... 


T 

Tee, Admission Manifold. 

V 

Valve, Oil press, relief. 

Valve and Tappet. 


Assembly Number 


E-3 

E-4 


12806 


12722 

12616 

12616 

12376 

12376 

12615 

12615 

12805 

12805 

12636 

12636 


12770 

12331 

12331 

12625 

12625 

12328 

12328 

12624 

12624 


12804 


12706 

12030 

12751 

12031 

12752 

12381 

12737 

12382 

12738 

12360 

12753 

12323 

12323 

12440 

12793 

.12350 

12736l. h. & r. 

12351 


12325 

12739 

12326 

12740 

12642 

12642 

12643 

12643 

12324 

12324 

12623 

12792 

12604 

12604 

12329 

12329 

12428 

12428 

12346 

12346 

12008 

12008 

11576 

12678 

12330 

12742 

12244 

12244 


12732 

12383 

12383 

12336 

12336 

12617 

12735 

11722 

11722 

12618 

12741 


88 













































WRIGHT AERONAUTICAL ENGINES 


Notes on Use of Service Tools 

All Hispano Type Engines 
THE SERVICE TOOL KIT 

The Service Tool Kit is designed to be carried in the airplane. It is sufficient for 
making all minor repairs in the field and should not be removed from the airplane for 
hangar use or for work on a ship when base repair tools are available. Even a top over¬ 
haul is possible with this kit, but more work than this is not practicable and should not 
be attempted. 

The tools in this kit are for use on all Wright (Hispano type) engines except that 
Propeller Hub Nut Wrenches, WA-110 and WA-111, are not used on Model A and Water 
Pump Bracket Nut Wrench, WA-21, is only necessary for service on Models A, E or I 
engines. The Model A Propeller Hub Nut Wrench, WA-72, may be substituted for 
Wrenches, WA-110 and WA-111. 

The small Westcott Wrench, WA-101, can be used for carburetor inspection, re¬ 
moval of magnetos and in several other places where several sizes of open end wrenches 
would be necessary. 

The larger Westcott Wrench, WA-106, will be found useful for the removal of large 
nuts, tank caps and in such other places where the 6" wrench is too light. 

The Screwdriver, WA-102, is necessary for the removal and replacement of cyl¬ 
inder cover screws (except Model A with square head screws), hose clamps, etc., and 
will be a valuable aid in many minor operations. 

The Cutting Pliers, WA-103, are intended for removal of cotter pins, safety wire, 

etc. 

The Hammer, WA-104, saves other tools from being used for that purpose. It is 
not often needed for heavy work, but it will be found very valuable for minor work in 
the field. 

The Canvas Tool Container is made of 10-ounce brown duck with pockets to accom¬ 
modate all tools. There are two straps on the outside for securing the roll. Many of 
the pockets are large enough and the roll is full enough to carry several additional tools, 
such as those used for work on the plane, if it is desired to carry them. 

COMPLETE LIST OF SERVICE TOOLS 

This list shows a complete set of tools for any kind of service on all Wright (His¬ 
pano type) engines. For a base repair shop or mother ship servicing several planes, the 
complete list would be required, while for a very large number of planes, possibly two 
sets would be necessary; or at least, two or more of some of the tools, such as Handles 
for Valve Seat Cutters, Valve Clearance Gauges, Valve Grinding Screwdrivers, etc. 

WA-3, WA-5 and WA-14 will be supplied in blueprint only. They can be easily 
made by mechanics at repair shops from the blueprints supplied. 

WA-6 is used to remove small magneto drive shaft gears as well as ball bearing 
and crankshaft gears at magneto end. 

WA-7 is the Handle for cutting valve seats with Cutters, WA-58, WA-59, WA-98 
and WA-99. 

WA-13 is used for timing all engines, the disc being properly graduated on both 

sides. 

WA-16 is used on all engines, one end being used for Models H, H-2, H-3, Type 
4 and E-4, and the other end for all other models. 

WA-25, Spark .Plug Wrench and Handle, may also be used for removing valve 
guides from cylinder blocks. 

WA-31 may be used for removing nuts on water pump bracket on all models. 
WA-30 may also be used, but the special closed end wrenich will be more convenient in 
some cases. 

WA-106, Speed Wrench with eleven sockets, will be found very handy in many 

places. 

WA-11 may be supplied in place of WA-110 and WA-111. It includes these two 
wrenches assembled with pin and lock-spring. 

WA-21 is used for certain water pump bracket nuts on Model A, E and I engines 
which cannot be removed with WA-31. 

WA-58, WA-59, WA-98 and WA-99 are used with Handle, WA-7. 

WA-72 should be substituted for WA-110 and WA-111 for service on Model A 
engines. 

WA-73 is used with High Speed Wrench Handle WA-106 on Model A engines which 
are equipped with square head cylinder cover screws. 

Quotations on These Tools Upon Request 

89 


WRIGHT AERONAUTICAL ENGINES 


SERVICE TOOL LIST 


All Hispano 

SERVICE TOOL KIT 
Assy.-WA-112 
For all Hispano Types 

(See photo, page one) 

Consisting of: 

Tool No. Tool Name 

WA- 16 Valve Clearance Gauge (Double 
End) 

WA- 20 Valve Tappet Adj. Wrench 
WA- 21 Water Pump Bracket Nut 
Wrench (A, E, I) 

WA- 22 Water Pump Gland Nut Wrench 
WA- 23 Adjustable Hook Spanner (small) 
WA- 24 Adjustable Hook Spanner 
(Large) 

WA- 25 Spark Plug Wrench and Handle 
WA- 26 Cylinder Stud Nut Wrench 
WA- 30 Double End Wrench ■&" and 
Hex. 

WA- 31 Water Pump Bracket Nut 
Wrench (All Models) 

WA-101 6" Westcott Wrench 

WA-102 12" Screwdriver (Pexto No. 3) 

WA-103 Side Cutting Pliers (Utica 8") 
WA-104 1 lb. Ball Pean Hammer (Che¬ 

ney) 

WA-105 10" Westcott Wrench 

WA-108 Canvas Tool Container 
WA-110—Propeller Hub Nut Wrench— 
Inner (Except A) 

WA-111 Propeller Hub Nut Wrench— 
Outer (Except A) 

COMPLETE SERVICE TOOL 
LIST 

(Common to all models) 


WA- 

1 

Camshaft Bearing Line Reamer 

WA- 

2 

Camshaft Bearing Aligning Bar 

WA- 

3 

Cylinder Holding Stand 

WA- 

4 

Dead Center Indicator 

WA- 

5 

Engine Tilting Stand 

WA- 

6 

Magneto and Crankshaft Gear 
Puller 

WA- 

7 

Handle for Valve Seat Cutters 

WA- 

12 

Spark Plug Bushing Wrench 
Assy. 

WA- 

13 

Timing Disc. Assy. 

WA- 

14 

Valve Assembling Frames 

WA- 

16 

Valve Clearance Gauge 

WA- 

17 

Valve Grinding Screwdriver 

WA- 

19 

Valve Tappet Socket Wrench 

WA- 

20 

Valve Adjusting Wrench 

WA- 

22 

Water Pump Gland Nut Wrench 

WA- 

23 

Adjustable Hook Spanner 
(Small) 

WA- 

24 

Adjustable Hook Spanner 
(Large) 

WA- 

25 

Spark Plug Wrench and Handle 


Type Engines 

Tool No. Tool Name 

WA- 26 Cylinder Stud Nut Wrench 
WA- 27 Valve Assembling Lever 
WA- 28 Crankshaft Lock Nut Wrench 
WA- 29 Socket Wrench—Crankshaft 

Brg. Stud Nut 

WA- 30 Double End Open Wrench for 
H" and &" Hex. 

WA- 31 Water Pump Bracket Nut 
Wrench 

WA- 51 Crankshaft Thrust Brg. Nut 
Wrench 

WA-101 6" Westcott Wrench 

WA-102 12" Screwdriver (Pexto No. 3) 

WA-103 Side Cutting Pliers (Utica 8") 
WA-104 1 lb. Ball Pean Hammer (Che¬ 

ney) 

WA-105 10" Westcott Wrench 

WA-106 Billmont Wrench Assy.—Sizes 16 
to 28 

WA-107 Spring, Valve Grinding 
WA-109 Single End Wrench Hex. • 
WA-112 Service Tool Kit Assy. 
(Common to all models except A) 
WA- 11 Propeller Hub Nut Wrench Assy. 
WA-110 Propeller Hub Nut Wrench— 
Inner 

WA-111 Propeller Hub Nut Wrench— 
Outer 

(Additional for A, E and I Engines) 
WA- 21 Water Pump Bracket Nut 
Wrench 


(Additional for A, E, I, E-2, E-3 & 
E-4 Engines) 


WA- 

53 

Main Bearing Reamer 

WA- 

54 

Piston Pin Bushing Reamer 

WA- 

55 

Valve Guide Plug Gauge (Ex.) 

WA- 

56 

Valve Guide Plug Gauge (Int.) 

WA- 

57 

Valve Guide Reamer 

WA- 

58 

Valve Seat Cutter and Pilot 



(Ex.) 

WA- 

59 

Valve Seat Cutter and Pilot 



(Int.) 

(Additional for H, H-2, H-3 & Type 



4 Engines) 

WA- 

93 

Main Bearing Reamer 

WA- 

94 

Piston Pin Bushing Reamer 


WA- 95 Valve Guide Plug Gauge (Ex.) 
WA- 96 Valve Guide Plug Gauge (Int.) 
WA- 97 Valve Guide Reamer 

WA- 98 Valve Seat Cutter and Pilot 

(Ex.) 

WA- 99 Valve Seat Cutter and Pilot 

(Int.) 

(Additional for A Engines Only) 
WA- 71 Piston Pin Set Screw Wrench 
WA- 72 Propeller Hub Nut Wrench 
WA- 73 Cylinder Cover Screw Wrench 


90 




Table of Specifications Covering Wright Engines 


WRIGHT AERONAUTICAL ENGINES 


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91 















13. Weight as in 12, but with cylin¬ 
der jackets full of water. 
Water in radiator, etc., not 


WRIGHT AERONAUTICAL ENGINES 


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92 











WRIGHT AERONAUTICAL ENGINES 


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VALVES AND TIMING T-2 T-3 


WRIGHT AERONAUTICAL ENGINES 


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94 


36. Correct pressure on fuel supply, 
lbs. per sq. in. 



















WRIGHT AERONAUTICAL ENGINES 


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WATER SYSTEM T-2 


WRIGHT AERONAUTICAL ENGINES 


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96 


Inlet—Inside diameter . 

Number of pieces... 
Outlet—Inside diameter ... 
Number of pieces. 











Model T - 2 Assembly 

(Longitudinal Section) 

























































^//440 

-- 15 7 99 

- 15160 

- 14600 

| -15144 

~—14635 
75792747 
‘ 75793-RH 

14953 
4474574 
-14995 
ft \'-15144 
V '--15743 
16647 
4 463C4 


14406 
CONN1665/ 
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15761 - 
14574- 
14995- 
14408- 
L.H75767- 
RH-15766 - 
15671 - 
15674 - 
15645- 
14406- 
15641 - 
15644- 


■ 16117 


11340 

1/983 


CRn/863 

H640 

-16367 

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-14953 

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-16310 

-15607 

-14995 

-6405A 

-16644 


75080 


-/ ’650 


16466 - 
DOWEL 7437- 
155/7 - 
15516 ■ 
155/3 - 
16374- 
16469- 
1437- 
16301 - 
16280- 
16119 - 
15750- 
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J FUEL FVMF -_ 

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75834 

76/07 


16109- 


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76106 


1636/-L4- 

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16 / 65 - 


76349 
7460Q 
76330 
744633 
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15786 J 
' 75789 15190 

\ 75774 1579/-" 

\ 75787 WIFE -1/630- 
74734 16439-1 

76457 ' BU5H1NG-I6436 
15598-814 !4997 J 

T773 15631-A 

330 DOWEL-1437^, 

7 63/5/7 

?5 145757 

W45HER •14996 
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// 16/18 J 
// 156404 

15694- 
16/20- 
14734- 
14869 J 
16121- 
15487 > 
14711- 
14644 
16163- 
16321- 
DOWEL 7437- 
16130- 


1/630- 
14605- 
U680 - 


1634314712- 
16324- 
14634- 
14574- 
163/9 ~ 
IDLER-16320 - 
STUD-14961 - 
NUT-1493/ - 
WR5RER-14941- 


16236 A 
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76/18 


16356 

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75489 

748/0 

7/530 


7153/ 

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74641 


SECTION,44 THRU OIL FILTER UNO 
OIL /PRESSURE RELIEF 




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Assembly Drawing 


WRIGHT 
Model T-2 Engine 


(Longitudinal Section) 





































































































































































































































































































































































































































































































































































































































































































‘ 
































































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Model T - 2 Assembly 

(Transverse Section) 













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Model T - 2 Assembly 

(Rear View ) 














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Model T-3 Assembly 

(.Longitudinal Section) 











































































































































































» 










































































































































































































































Assembly Drawing 

WRIGHT 
Model T-3 Engine 


(Longitudinal Section) 






































































































































































































































































































































































































































































































































Model T - 3 Assembly 

(Transverse Section ) 






























































































































































































































































































































































































































































































Model T - 3 Assembly 

{Rear View) 



















































































































































































































































































































Assembly Drawing 

WRIGHT 
Model T-3 Engine 

(Rear View) 




































































































































































































































































































































































♦ 






































































. 

















































































































































































♦ 




































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— 7 l 





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Model T-3 Engine 












































































































































































































































































































































Model T - 2 and T * 3 Clearance 

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Clearance Drawings 

Water and Oil Pump Sections. Valves 
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Models T-2 & T-3 Engines 






























































































































































































































































































































































































































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Models T-2 & T-3 Engines 

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Clearance Drawing 
HAND STARTER 
Model T - 2 Engine 





























































































































































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Firing Order 

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WIRING DIAGRAM 
WRIGHT 

Models T-2 & T-3 Engines 




































































































































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WIRING DIAGRAM 
WRIGHT 

Models E-3 & E-4 Engines 




























































































Model E - 4 Assembly 

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Assembly Drawing 

WRIGHT 
Model E-4 Engine 


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Model E-4 Engine 


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Model E*3 & E-4 Clearances 

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WRIGHT 

Models E-3 & E-4 Engine 

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Assembly Drawing 






















































































































































































































MUST 


END.CLEARANCE 


00 8L00SE DES/XED 


TMAX 


.000?"L. M!N. 

.COTLOOSE DESIRED 

.002'L. MAX. 


. 0005“ T. M/M 




INSIDE SPLINE DIAMETER 

.0000“ T 

OPT LOOSE DESIRED 

.OPEL . MAX. 


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SIDE CL EARANCE OF SPLINE 

.00 POT 

. 0005 L POSE DE5/NED 

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AT LEAST TWO SPLINES 


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Clearance Drawings 

Magneto Support and Coupling 
and Synchronizer Gear 



























































































































































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